Brian Cassella / Chicago TribuneUSA's Kevin Durant and Jimmy Butler celebrate their win over Serbia in the gold medal basketball game on Aug. 21, 2016, at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer before the 200-meter freestyle final Aug. 8, 2016, at the Olympic Aquatics Stadium.
Brian Cassella / Chicago TribuneMichael Phelps celebrates his gold medal in the 200-meter butterflyAug. 9, 2016.
Brian Cassella / Chicago TribuneUSA's Kent Farrington, of Chicago, competes in individual jumping Friday, Aug. 19, 2016 at the Olympic Equestrian Centre in Rio de Janeiro.
Brian Cassella / Chicago TribuneA view of the city, Guanabara Bay and Sugarloaf Mountain on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneMen compete in the 10km marathon swim Tuesday, Aug. 16, 2016 off Copacabana Beach.
Brian Cassella / Chicago TribuneChildren play soccer barefoot in one of the few recreational spaces in the hillside favela Rocinha on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer celebrates his gold medal with teammates in the 800-meter freestyle relay Aug. 10, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Madison Keys eyes her opponent, Germany's Angelique Kerber, on Aug. 12, 2016, at the Olympic Tennis Centre in Rio de Janeiro.
Brian Cassella / Chicago TribuneHouses in a hillside favela on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneRussian rhythmic gymnasts perform on Aug. 20, 2016 at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneChrist the Redeemer emerges through the clouds on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Jordan Wilimovsky competes in the 10km marathon swim off Copacabana Beach in Rio de Janeiro on Aug. 16, 2016. He finished in fifth place.
Brian Cassella / Chicago TribuneMissy Franklin and Maya DiRado talk after Franklin failed to qualify for the final of the 200-meter backstroke Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Jordan Wilimovsky competes in the 10km marathon swim and finished fifth Aug. 16, 2016, off Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles on the balance beam Aug. 15, 2016, at the Rio Olympic Arena.
Brian Cassella / Chicago TribuneA hillside favela and north zone downtown streets on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneTourists wait for a turn to pose in the Olympic rings along Copacabana beach on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazilian military patrols Corcovado on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazilian military patrol Ipanema Beach on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneMichael Phelps celebrates his gold medal in the 200-meter butterfly Aug. 9, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles performs her floor routine for the gold medal Aug. 16, 2016, at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Maya DiRado celebrates her silver medal in the women's 400-meter individual medley Aug. 7, 2016, at the Olympic Aquatic Center in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles and Aly Raisman see their scores as they celebrate their gold and silver medals in the floor routine Aug. 16, 2016, at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneA boy plays soccer on Copacabana Beach on Aug. 4, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazil fans watch their women's team of Barbara Seixas and Agatha Bednarczuk defeat the Czech Republic in a pool play match Aug. 6, 2016, at the beach volleyball arena during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUsain Bolt, of Jamaica, wins the gold medal in the 100-meter dash on Aug. 14, 2016, at the Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles and Aly Raisman celebrate their gold and silver medals in the floor routine Aug. 16, 2016, at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneKenya's Vivian Jepkemoi Cheruiyot celebrates her gold medal in the 5000 meters on Aug. 19, 2016 at Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneAmerican fans agonize as Casey Patterson and Jake Gibb lose to Spain on Aug. 10, 2016, at the beach volleyball arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneHaley Augello loses her 48kg freestyle wrestling match to Mongolia's Zhuldyz Eshimova on Aug. 17, 2016 at Carioca Arena 2 in Rio de Janeiro.
Brian Cassella / Chicago TribuneJimmy Butler on Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park.
Brian Cassella / Chicago TribuneVanderlei de Lima lights the Olympic cauldron on Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles and coach Aimee Boorman after the balance beam Aug. 15, 2016, at the Rio Olympic Arena.
Brian Cassella / Chicago TribuneGreat Britain's Justin Rose and USA's Rickie Fowler tee off on the eighth hole Aug. 11, 2016, on the first day of competition at the Olympic Golf Course in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles flies during her floor routine on Aug. 9, 2016, in the women's team final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Kiley Neushul fires a shot against Hungary during their semifinal water polo win on Aug. 17, 2016 at Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneLaurie Hernandez after winning the silver medal in balance beam Aug. 15, 2016, at the Rio Olympic Arena.
Brian Cassella / Chicago TribuneUSA's Kyle Lowry (7) and DeMarcus Cousins celebrate a score against Argentina in a quarterfinal basketball game on Aug. 17, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneA view from the hillside favela Rocinha of Sugarloaf Mountain and the lagoon where the rowing competition will take place Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Elena Delle Donne put up a shot during a quarterfinal game against Japan on Aug. 16, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Cody Miller, left, celebrates his bronze medal while Great Britain's Adam Peaty, right, reacts after winning the gold in the 100-meter breaststroke Aug. 7, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneAssistant basketball coach Tom Thibodeau talks to his team Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park.
Brian Cassella / Chicago TribuneFans watch Brazil's team of Barbara Seixas and Agatha Bednarczuk defeat the Czech Republic in a pool play match Aug. 6, 2016, during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneA man juggles for tips in traffic along Av. Princesa Isabel in Copacabana on Aug. 6, 2016, during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's April Ross and Kerri Walsh Jennings and celebrate their bronze medal victory over Brazil's Larissa Franca Maestrini and Talita Rocha on Aug. 17, 2016 at the Beach Volleyball Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneBarbara Seixas and Agatha Bednarczuk celebrate on their way to a win against the Czech Republic in a pool play match Aug. 6, 2016, at the beach volleyball arena during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneA man brings his surfboard to the beach along Avenida Nossa Senhora de Copacabana on Aug. 6, 2016, during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneGreat Britain diver Tom Daley trains in a pool that turned greenish Aug. 12, 2016, at the Maria Lenk Aquatics Center in Rio de Janeiro. Officials insisted the water was safe for diving, though they closed it Aug. 12 for diving practice.
Brian Cassella / Chicago TribuneBen Kanute hugs his parents Eileen and Mike after competing in the triathlon on Aug. 18, 2016 at Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribunePerformances on August 5, 2016 at Maracana Stadium during the Opening Ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneDirections for the crowd to dance before the show on August 5, 2016 at Maracana Stadium during the Opening Ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe USA rhythmic gymnastics team performs the ribbon rotation on Aug. 20, 2016 at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneCasey Patterson hits the sand as he and USA teammate Jake Gibb lose to Spain on Aug. 10, 2016, at the beach volleyball arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneTourists pose in the Olympic rings along Copacabana beach on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneMichael Phelps beats out Ryan Lochte in the 200-meter individual medley Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazilian fans wave flags, Aug. 17, 2016, at the Beach Volleyball Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneCoaches provide drinks to swimmers as they compete in the 10km marathon swim Aug. 16, 2016, off Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneArgentina fans celebrate a shot against the USA in a men's quarterfinal basketball game on Aug. 17, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneJimmy Butler, second from right, with teammates Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park.
Brian Cassella / Chicago TribuneWomen run a semifinal of the 1,500 meters Aug. 14, 2016, at Olympic Stadium.
Brian Cassella / Chicago TribuneUSA's Kerri Walsh Jennings and April Ross celebrate their bronze medal victory over Brazil's Larissa Franca Maestrini and Talita Rocha on Aug. 17, 2016, at the Beach Volleyball Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe USA rhythmic gymnastics team performs the ribbon rotation on Aug. 20, 2016 at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribunePeople pose in front of a sand castle at Copacabana Beach on Aug. 4, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Brittney Griner has her shot blocked by Spain's Laura Nicholls in the gold medal basketball game on Aug. 20, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribunePeople perform Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneFireworks explode Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Kevin Cordes swims the 200-meter breaststroke Aug. 10, 2016.
Brian Cassella / Chicago TribuneUSA defeats Spain 101-72 in the gold medal basketball game on Aug. 20, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneBen Kanute emerges from the water after the swimming while competing in the triathlon on Aug. 18, 2016 at Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Manuel swims with the 400-meter medley relay on Aug. 13, 2016, at the Olympic Aquatics Center in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Alev Kelter collides with Australia's Evania Pelite in women's rugby sevens Aug. 7, 2016, at Deodoro Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneMissy Franklin finishes last in her 200-meter freestyle semifinal Aug. 8, 2016, at the Olympic Aquatics Stadium.
Brian Cassella / Chicago TribuneAly Raisman performs her floor routine for the silver medal Aug. 16, 2016, at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneTeam USA fans watch Jake Gibb and Casey Paterson win Aug. 6, 2016 at the beach volleyball arena during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Haley Augello, right, of Lockport, wrestles Eri Tosaka of Japan on Aug. 17, 2016, at Carioca Arena 2 in Rio de Janeiro.
Brian Cassella / Chicago TribuneChildren play soccer barefoot in one of the few recreational spaces in the hillside favela Rocinha on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUsain Bolt and his golden shoes step off the track after Jamaica took gold in the 400-meter relay on Aug. 19, 2016 at Olympic Stadium in Rio de Janeiro. Gold
Brian Cassella / Chicago TribuneA view of downtown streets Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneA man and his dog sit in front of a store in the hillside favela Rocinha on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBronze medalist Simone Biles and silver medalist Laurie Hernandez stand with gold medalist Sanne Wevers of the Netherlands after the balance beam Aug. 15, 2016, at the Rio Olympic Arena.
Brian Cassella / Chicago TribuneUSA's Conor Dwyer hits the pool for his 200-meter freestyle semifinal Aug. 7, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneAssistant basketball coach Tom Thibodeau talks to Carmelo Anthony on Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park.
Brian Cassella / Chicago TribuneSimone Biles on the balance beam Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles prepares for the balance beam Aug. 15, 2016, at the Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Elena Delle Donne, center, prepares to play a quarterfinal game against Japan on Tuesday, Aug. 16, 2016 at Carioca Arena 1.
Brian Cassella / Chicago TribuneOlivia Smoglia swims in the 100-meter backstroke final Aug. 8, 2016, at the Olympic Aquatics Stadium.
Brian Cassella / Chicago TribuneSimone Manuel celebrates her gold medal with the 400-meter medley relay on Aug. 13, 2016, at the Olympic Aquatics Center in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles and Aly Raisman celebrate their gold and silver medals in the floor routine Tuesday, Aug. 16, 2016 at Rio Olympic Arena.
Brian Cassella / Chicago TribuneMalaysia's V. Shem Goh goes up for a hit in a doubles quarterfinal badminton win over Korea on Aug. 15, 2016, at Riocentro in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Kent Farrington rides Voyeur in equestrian jumping qualifying Aug. 14, 2016, at the Olympic Equestrian Center in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Kevin Cordes after swimming the 200-meter breaststroke Aug. 10, 2016 at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer celebrates his bronze medal in the 200-meter freestyle Aug. 8, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneStaff member pose for team photos after the rowing competition was postponed by rainy weather on Aug. 10, 2016, at Lagoa Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer swims for a bronze medal in the 200-meter freestyle Aug. 8, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneCoaches give directions as men compete in the 10km marathon swim on Aug. 16, 2016, off Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneKatie Ledecky smiles after winning the gold medal in the 400-meter freestyle Aug. 8, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUsain Bolt and Jamaica take gold in the 400-meter relay on Aug. 19, 2016 at Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe USA rhythmic gymnastics team performs with clubs and hoops on Aug. 20, 2016 at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneGreat Britain's Pippa Funnell completes a water jump on Billy the Biz during crosscountry evening equestrian competition Aug. 8, 2016, at the Olympic Equestrian Center.
Brian Cassella / Chicago TribunePeople walk to Maracana Stadium on Aug. 5, 2016, for the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneOlivia Smoglia swims in the 100-meter backstroke final on Aug. 8, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe north zone of the city on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneIreland's Jonty Evans rides Cooley Rorkes Drift though a water jump in cross-country evening competition Aug. 8, 2016.
Brian Cassella / Chicago TribuneAmerican fans root on Casey Patterson and Jake Gibb on Aug. 10, 2016, at the beach volleyball arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneAly Raisman on the vault Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazilian police patrol the streets of the hillside favela Rocinha on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneJimmy Butler and Team USA celebrate their gold medal win over Serbia in basketball on Aug. 21, 2016, at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Ryan Murphy celebrates his gold medal in the 200-meter backstroke Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe USA team of Tianna Bartoletta, English Gardner, Tori Bowie and Allyson Felix celebrate their gold medal win in the women's 400-meter relay on Aug. 19, 2016 at Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUsain Bolt and Jamaica take gold in the 400-meter relay on Aug. 19, 2016 at Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Sylvia Fowles celebrates during a basketball semifinal on Aug. 18, 2016 at Carioca Arena 1 in Rio de Janeiro. (Brian Cassella/Chicago Tribune)
Brian Cassella / Chicago TribuneMichael Phelps celebrates his gold medal in the 200-meter individual medley Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Jordan Wilimovsky competes in the 10km marathon swim and finished fifth Tuesday, Aug. 16, 2016 off Copacabana Beach.
Brian Cassella / Chicago TribuneGreat Britain's Chris Langridge and Marcus Ellis win a badminton match against Japan on Aug. 15, 2016, at Riocentro in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Katie Ledecky wins a gold medal in the 400-meter freestyle Aug. 7, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Daryl Homer on his way to losing the gold medal match to Hungary's Aron Szilagyi in the fencing saber competition Aug. 10, 2016.
Brian Cassella / Chicago TribuneFamily and friends including his mother Eileen (second from left, at front) cheer on Ben Kanute as he competes in the triathlon on Aug. 18, 2016 at Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneRickie Fowler of the USA tees off on the seventh hole Aug. 11, 2016, on the first day of competition at the Olympic Golf Course in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Elena Delle Donne drives against France's Endy Miyem in a basketball semifinal on Aug. 18, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneInes Boubakri of Tunisia celebrates her bronze medal win over Aida Shanaeva of Russia in the fencing individual foil Aug. 10, 2016.
Brian Cassella / Chicago TribuneA light display at the end of the show on Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneRussian tennis players Ekaterina Makarova and Elena Vesnina celebrate their gold medal in women's doubles on Aug. 14, 2016 at the Olympic Tennis Center in Rio de Janeiro.
Brian Cassella / Chicago TribunePerformances on August 5, 2016 at Maracana Stadium during the Opening Ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Lauren Kieffer after competing in cross-country eventing Aug. 8, 2016, at the Olympic Equestrian Center.
Brian Cassella / Chicago TribuneJimmy Butler on Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park.
Brian Cassella / Chicago TribuneSimone Biles hugs coach Aimee Boorman after her balance beam routine Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles and teammates on Aug. 9, 2016, in the women's team gymnastics final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles on the uneven bars Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Simone Manuel reacts as she wins a gold medal in the 100-meter freestyle on Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer goes into the stands to hug his mother, Jeanne, while celebrating his bronze medal in the 200-meter freestyle Aug. 8, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Jimmy Butler eyes a rebound against Serbia's Nikola Kalinic on Aug. 12, 2016, at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneMichael Phelps with Ryan Lochte as Phelps celebrates his gold medal in the 200-meter individual medley Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe beach volleyball stadium on Copacabana Beach on Aug. 6, 2016, during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrazilian fans celebrate a win by Barbara Seixas and Agatha Bednarczuk against the Czech Republic in a pool play match Aug. 6, 2016, at the beach volleyball arena during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Lindsay Whalen is helped up during a quarterfinal game against Japan on Aug. 16, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Ryan Murphy celebrates his gold medal in the 200-meter backstroke Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribunePhotographers prepare to cover the 100-meter dash Aug. 14, 2016, at the Olympic Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's DeAndre Jordan celebrates his dunk over Spain's Pau Gasol in a semifinal basketball game on Aug. 19, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneMalaysian fans cheer a doubles quarterfinal badminton win over Korea on Aug. 15, 2016, at Riocentro in Rio de Janeiro.
Brian Cassella / Chicago TribuneInes Boubakri of Tunisia on her way to losing a semifinal match in fencing individual foil Aug. 10, 2016 at Carioca Arena 3 in Rio de Janeiro. She went on to win the bronze medal.
Brian Cassella / Chicago TribuneTeam USA celebrates their win over Serbia in the gold medal basketball game on Aug. 21, 2016, at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe USA rhythmic gymnastics team reacts while waiting for their scores on Aug. 20, 2016 at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Maya Moore goes against Spain's Laia Palau in the gold medal basketball game on Aug. 20, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneJapan's Mika Kurihara fouls USA's Angel McCoughtry during a quarterfinal game on Aug. 16, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneTeam USA marches Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneOld refrigerators used as a library inside the public garden space in the hillside favela Rocinha on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Elena Delle Donne prepares to play a quarterfinal game against Japan on Aug. 16, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneConor Dwyer celebrates his bronze medal in the 200-meter freestyle Aug. 8, 2016, at the Olympic Aquatics Stadium.
Brian Cassella / Chicago TribuneChicago native Tyrone Smith carries the flag of Bermuda in the parade of nations Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribunePerformances on Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles on the balance beam Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA coach Geno Auriemma during a quarterfinal game against Japan on Tuesday, Aug. 16, 2016 at Carioca Arena 1.
Brian Cassella / Chicago TribuneCoach Aimee Boorman watches as Simone Biles performs her floor routine Aug. 9, 2016.
Brian Cassella / Chicago TribuneAustria is introduced Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneTourists pose in the Olympic rings along Copacabana beach on Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneTeam USA takes the field to play Australia on Aug. 7, 2016, in women's rugby sevens at Deodoro Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneA gymnast with an Olympic tattoo competes on Aug. 9, 2016, in the women's gymnastics team final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles on the balance beam Aug. 9, 2016, in the women's team gymnastics final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneSwimmers enter the water for the triathlon on Aug. 18, 2016 at Copacabana Beach in Rio de Janeiro.
Brian Cassella / Chicago TribuneA team from Belgium continues training after the rowing competition was postponed by rainy weather Aug. 10, 2016, at Lagoa Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneFencing action on Aug. 10, 2016, at Carioca Arena 3 in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Jake Gibb and Casey Patterson celebrate their win over Qatar on Aug. 6, 2016, at the beach volleyball arena during the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneMen rake the sand between sets Aug. 10, 2016, at the beach volleyball arena.
Brian Cassella / Chicago TribuneAmerican swimmer Michael Phelps carries the flag as the United States is introduced Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe U.S. team of Aly Raisman, Simone Biles, Lauren Hernandez, Gabrielle Douglas and Madison Kocian celebrate their gold medal Aug. 9, 2016.
Brian Cassella / Chicago TribuneConor Dwyer's three brothers watch him receive his gold medal in the 800-meter freestyle relay Aug. 10, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneJimmy Butler defends Gregory Vargas on Aug. 8, 2016, as the USA faced Venezuela at Carioca Arena 1 in Barra Olympic Park in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles performs her floor routine for the gold medal Aug. 16, 2016, at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneKim Jung-Hwan of South Korea celebrates his bronze medal win over Mojtaba Abiding of Iran in the fencing sabre competition Aug. 10, 2016.
Brian Cassella / Chicago TribuneThe U.S. team celebrates their gold medal Aug. 9, 2016, in the women's gymnastics team final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Simone Biles loses her balance on the beam on her way to a bronze medal Aug. 15, 2016, at the Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribunePerformances on Aug. 5, 2016, at Maracana Stadium during the opening ceremony of the Summer Olympics in Rio de Janeiro.
Brian Cassella / Chicago TribuneBrittney Griner picks up Elena Delle Donne as the USA defeats Spain 101-72 in the gold medal basketball game on Aug. 20, 2016 at Carioca Arena 1 in Rio de Janeiro.
Brian Cassella / Chicago TribuneSimone Biles celebrates her gold medal with silver medalist Aly Raisman on Aug. 11, 2016, in the women's gymnastics individual all-around final at Rio Olympic Arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneMichael Phelps poses for photos after winning gold in the 200-meter individual medley Aug. 11, 2016, at the Olympic Aquatics Stadium in Rio de Janeiro.
Brian Cassella / Chicago TribuneUSA's Casey Patterson struggles as his team falls to Spain on Aug. 10, 2016, at the beach volleyball arena in Rio de Janeiro.
Brian Cassella / Chicago TribuneThe beach volleyball venue along Copacabana beach Aug. 3, 2016, before the start of the Olympics in Rio de Janeiro.
Pre-Olympics media reports about the Zika virus, polluted water and political unrest in Brazil helped NBC’s advertising sales, network executives said Thursday.
That sounds counter-intuitive, but NBC Sports advertising head Seth Winters said in a conference call from Rio de Janeiro that “it just made people more aware that there is something going on down here.”
He said NBC had already sold $1.2 billion in national advertising time, at a pace about 20 percent above the 2012 London Games, and is holding back inventory for additional sales. The network hit its internal target weeks in advance, and often that doesn’t happen until after the games start, if the target is reached, he said.
NBC Universal Chief Executive Officer Stephen Burke has already predicted that he expects Rio to be the most profitable Olympics in history. NBC, which paid $1.2 billion for the broadcasting rights to Rio, made money from London, too.
The London Games were a huge success for NBC, which averaged 31.1 million viewers across two weeks of prime-time coverage. In today’s fragmented television world, nothing can come close to gathering such a large, diverse audience for that length of time.
NBC Universal spreads its Olympic coverage across 11 television networks and is streaming all of the competition online. But roughly three-quarters of its ad sales come for the prime-time telecast on the broadcast network.
“Advertisers are exceptionally bullish about these games,” Winter said.
NBC will begin its prime-time coverage with an hour-long preview Thursday night, and will televise the opening ceremony on Friday.
Winter said viewers will see some political advertising during the Olympics, but he wouldn’t specify which campaigns have bought time.
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