CHICAGO -- Dan Uggla hit a tiebreaking two-run single in the eighth inning and the Atlanta Braves beat the Chicago Cubs 3-1 Tuesday night.

Michael Bourn reached on a leadoff single and Kerry Wood issued two walks before Uggla drove a 1-1 pitch back up the middle for his third hit of the game. Freddie Freeman helped set up the big inning by hustling down the line to prevent a potential double play.

Wood (0-2) has struggled since he was sidelined for three weeks with right shoulder fatigue, yielding two runs in each of his two outings since he was activated from the disabled list on Thursday.

Kris Medlen (1-0) pitched a perfect seventh, Jonny Venters worked out of a jam in the eighth and Craig Kimbrel finished for