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Cubs starter Travis Wood. 
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All games on WGN-AM 720.
Season series: Brewers 8-4.
Friday: 1:20 p.m., WGN-Ch. 9.
RH Kyle Lohse (9-8, 3.32) vs. LH Chris Rusin (2-3, 2.74).
Saturday: 3:05 p.m., CSN.
RH Johnny Hellweg (0-3, 10.97) vs. RH Jake Arrieta (2-1, 3.77).
Sunday: 1:20 p.m., WGN-Ch. 9.
RH Yovanni Gallardo (10-9, 4.31) vs. LH Travis Wood (8-11, 3.17).
Who’s hot: Lohse has allowed three runs or fewer in eight of his last nine starts. Gallardo has a 1.36 ERA in his last four starts. Donnie Murphy has a seven-game hitting streak. Rusin has a 1.86 ERA in his last eight starts.
Who’s not: The Brewers have lost five of their last six games. Yuniesky Betancourt is 4-for-18. Nate Schierholtz is 3-for-33. Anthony Rizzo is 4-for-20.
