Peralta's grand slam
August 12, 2015 | 00:00:45
8/11/15: David Peralta hammers a grand slam to left-center field and the D-backs take an 8-1 lead in the 2nd inning
8/11/15: David Peralta hammers a grand slam to left-center field and the D-backs take an 8-1 lead in the 2nd inning