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TV/radio: 8 p.m. Friday, CSN, WGN-AM 720.
Storylines: The teams have already met twice, but this time the Flames will be without one of their top scoring threats in Johnny Gaudreau, who will undergo surgery to repair a broken finger.
Trending: Former Hawks Michael Frolik and Troy Brouwer have 10 combined goals for the Flames. … Hawks defenseman Duncan Keith has yet to score a goal but has 12 assists.
