FORT MYERS, Fla. -- Top pitching prospect Lewis Thorpe was diagnosed with a torn ulnar collateral ligament in his left elbow and will undergo season-ending Tommy John surgery, Twins general manager Terry Ryan said Saturday.
Thorpe, ranked as the club's No. 10 overall prospect by MLB.com, felt pain in his elbow after throwing a pitch in a Minor League game last week. He was originally shut down while pitching for Class A Cedar Rapids last September with a sprained ulnar collateral ligament, but rehabbed it this offseason to make his return this spring. It didn't work out, however, as the 19-year-old Australia native will need to have the surgery. Ryan didn't know the date or who will perform the operation just yet.