Polanco's first grand slam
Pirates @ MarlinsMay 30, 2016 | 00:00:30
With the bases loaded, Gregory Polanco drills his first career grand slam over the fence in right, giving the Pirates a 7-0 lead #PapaSlam
With the bases loaded, Gregory Polanco drills his first career grand slam over the fence in right, giving the Pirates a 7-0 lead #PapaSlam