The Pittsburgh Pirates looked for Gregory Polanco to give them a spark when they moved him to the top of the batting order last month after leadoff hitter Josh Harrison tore a ligament in his thumb. Polanco and Andrew McCutchen homered and the Pirates beat Chicago 7-5 on Wednesday night, ending the Cubs' season-best six-game winning streak. Polanco has hit .282 (28 for 99) with 13 walks in 25 games since Harrison went on the disabled list July 6. More...