Just a day after coming off the disabled list, Matt Kemp aggravated his left hamstring while scoring from first base against the Brewers on Wednesday night. Kemp's stride slowed noticeably as he came around third base. He left the game immediately. "I don't know what happened," the Dodgers center fielder said. "It's just kind of gave out. It's definitely frustrating, having just come back, and now I will be sitting out a while. ... I tried to hide it, but there really was no hiding this." Kemp, who broke a bat over his knee in the dugout before heading to the clubhouse, will undergo an MRI on Thursday to determine the extent of the injury.