Cubs 5, Giants 4

Cubs players celebrate after defeating the San Francisco Giants, 5-4, at Wrigley Field on Thursday.

Cubs left fielder Chris Coghlan makes a catch during the fifth inning.

Cubs left fielder Chris Coghlan tries to catch a foul ball hit by San Francisco Giants left fielder Gregor Blanco during the seventh inning.

Cubs relief pitcher Pedro Stroptosses a ball hit by San Francisco Giants third baseman Matt Duffy to first baseman Anthony Rizzo during the eighth inning.

Cubs relief pitcher Hector Rondon pitches during the ninth inning.

A fan throws back a home run ball from San Francisco Giants shortstop Brandon Crawford during the fifth inning.

Cubs players celebrate after defeating the San Francisco Giants 5-4.

San Francisco Giants right fielder Hunter Pence steals second base past Cubs shortstop Starlin Castro during the sixth inning.

Cubs first baseman Anthony Rizzo steals second base during the fifth inning.

A man reacts after being hit by a ball from San Francisco Giants left fielder Nori Aoki during the fifth inning.

Cubs relief pitcher Justin Grimm pitches during the fifth inning.

Cubs relief pitcher Justin Grimm licks his hand while pitching during the fifth inning.

Cubs right fielder Jorge Soler hits a two-RBI single during the first inning.

Cubs catcher Kyle Schwarber, left, and first baseman Anthony Rizzo high-five after scoring on a two RBI single from right fielder Jorge Soler during the first inning.

From left, Cubs second baseman Addison Russell, catcher Kyle Schwarber, and starting pitcher Jason Hammel walk back to the dugout after Schwarber hit a two-run home run during the second inning.

Cubs catcher Kyle Schwarber hits a two-run home run in the second inning.

Cubs starting pitcher Jason Hammel pitches during the first inning.

Cubs starting pitcher Jason Hammel pitches during the first inning.

Fans try to grab a ball hit by San Francisco Giants third baseman Matt Duffy during the first inning.

Cubs starting pitcher Jason Hammel pitches during the first inning.

Cubs left fielder Chris Coghlan tosses the bat between his hands while at the plate during the first inning.