Top Prospects: Gregorio, SF
April 1, 2015 | 00:00:56
2015 MLB.com Top Prospects: Joan Gregorio can miss bats with his 91-95 mph fastball and mid-80s slider, but needs to improve to be a starter
2015 MLB.com Top Prospects: Joan Gregorio can miss bats with his 91-95 mph fastball and mid-80s slider, but needs to improve to be a starter