Jarred Cosart has struggled with his control at Triple-A, walking 50 batters in 93 innings, but the Astros have decided that the 23-year-old right-hander is ready for the majors and he’ll make his debut tomorrow against the Rays.
Cosart was acquired from the Phillies as part of the haul for Hunter Pence in 2011 and MLB.com ranked him as the No. 89 prospect coming into the season. Aside from the spotty control he’s pitched very well at Triple-A with a 3.29 ERA and 93 strikeouts in 93 innings, holding opponents to a .213 batting average.
Cosart has electric raw stuff, throwing a heavy mid-90s fastball that generates tons of ground balls and very few homers. He hasn’t fared particularly well of late, allowing five runs and four walks in his final Triple-A start last week, and the Rays are a relatively tough debut matchup with the fifth-best offense in the league.