The ex-Tiger signed a one year deal with the Twins in the off-season. In his first live BP, he threw 12 pitches and tore his ulnar collateral ligament in his elbow. He could elect to have Tommy John surgery, but then is looking at least another year in rehab before being able to try to pitch again.
This is really too bad; he was such a stud as a rookie in 2006 and has been plagued by injury since, pitching less than 40 innings since. Hopefully he can figure out what is best for him and his family moving forward, whether that be electing for the surgery or retiring.