Back in 2014, December to be exact, the Boston Red Sox signed former Detroit Tigers top prospect Casey Crosby to a Minor League deal with an invitation to Spring Training.
Rated the 47th best prospect in all of baseball by Baseball American before the 2010 MLB season, hopes were high for the Illinois native. After fanning 117 batters in 104.2 innings with an impressive 2.41 ERA in 2009, things were looking up for Crosby, until disaster struck.
Limited to three starts in the Gulf Coast League as a result of some arm problems, Crosby who had Tommy John surgery in 2008 has not been the same since getting hurt in 2010. It was not the TJ surgery that slowed him down.
The tall lefty made his big league debut in 2012 when he made three starts going 12.1 innings. He allowed 13 earned runs in those outings and has since switched to the bullpen.
This past season Crosby was used exclusively out of the bullpen, but experienced elbow disxomfort in Spring Training only to be done for the year in May due to injury. In his 11 outings, he tossed 17.1 frames and allowed 11 earned runs. Struggling with command, he walked 13 men while striking out 12.
At 6ft5, Crosby has the frame of a big-time pitcher and used to have the velocity to go along with it as well. A few years ago he topped out in the upper 90's. Now, he does not throw as hard and struggles with command. If he can go a full season in relief, he might just be able to show a glimpse of the potential he once had before injuries marred his career.