Fred Mitchell and David Kaplan of the Chicago Tribune says that former Padres and Cubs pitcher Mark Prior recently started throwing again in hopes of making one more comeback.

Prior recently took a line drive off of his pitching shoulder while throwing batting practice to a local team. He was shutdown for three weeks, but the injury was not considered serious.

Prior, 29, pitched for the Cubs from 2002-2006. He has a career 42-29 record with a 3.51 ERA.  He had a promising start, but his career was derailed with several injuries.