They keep injured pitchers around because they are under contract. Why should they sign a guy if their doctors think he is damaged goods? Yo make everyone feel nice?
DiComa for MLB.com wrote: "Simply put, team officials believed Rocker’s injury issues were serious enough to value a future pick more than him -- this was not simply a matter of a player needing Tommy John surgery, like Mets second-rounder J.T. Ginn did in 2020. (The Mets selected Ginn despite that injury, and he is now their fifth-ranked prospect.)"
Rocker is suffering from something worse than needing TJ surgery? Such as?