Happ's monster grand slam
Cubs @ MetsJune 13, 2017 | 00:00:27
Ian Happ clears the bases as he knocks a grand slam to left-center, extending the Cubs' lead to 6-1 in the top of the 2nd #PapaSlam
Ian Happ clears the bases as he knocks a grand slam to left-center, extending the Cubs' lead to 6-1 in the top of the 2nd #PapaSlam