Giese on Gray during debut
Mariners @ RockiesAugust 4, 2015 | 00:02:41
8/4/15: Oklahoma Sooners pitching coach Jack Giese discusses his former pitcher Jon Gray as he makes his Major League debut vs. the Mariners
8/4/15: Oklahoma Sooners pitching coach Jack Giese discusses his former pitcher Jon Gray as he makes his Major League debut vs. the Mariners