Kris Bryant hit a go-ahead, two-run homer in the eighth inning to give the Chicago Cubs a 12-11 comeback victory over the San Francisco Giants in a wild, back-and-forth game Wednesday night at Wrigley Field. Nicholas Castellanos and Kyle Schwarber also connected for Chicago, which has won four straight despite losing leads twice in the last four innings. The Cubs moved back into first place in the NL Central by a half-game over St. Louis, which lost to Milwaukee in a rain-shortened game.