Cubs left-hander Jon Lester ran into a little bad luck his last time out, allowing a run in 6 2/3 innings in a 2-1 loss. On Saturday he gets to face a team against which he is undefeated in three starts. Giants right-hander Matt Cain has also pitched in bad luck recently, turning in consecutive solid outings following a dreadful start to the year. He gets to face a team against which he is 5-2 in nine home starts.