Top Prospects: Keller, PIT
April 2, 2020 | 00:00:46
2020 MLB.com Top Prospects: Mitch Keller's fastball tops at 98 mph to go with a power curve and he has begun to improve his command
2020 MLB.com Top Prospects: Mitch Keller's fastball tops at 98 mph to go with a power curve and he has begun to improve his command