CHICAGO (AP) - The Pittsburgh Pirates are making a habit out of winning from behind. The Chicago White Sox are losing every which way. Colin Moran hit a two-run homer that capped a four-run rally against Nate Jones in the ninth inning, leading the Pirates over Chicago 6-5 on Wednesday and sending the last-place White Sox to their ninth loss in 10 games. Pittsburgh trailed 4-0 for the second straight night before rebounding for its 10th comeback victory. "We've got each other's backs," Pirates shortstop Jordy Mercer said. "We created that chemistry in spring training. And we've got nothing to lose. Everybody picked us to be last and tank and not be good. So we just go out and have fun and play."