Twins signed RHP Rich Harden to a minor league contract. He's been given an invitation to spring training. Harden missed the entire 2012 season following surgery to repair a torn capsule in his right shoulder, but he's reportedly healthy now and trying for a comeback. The 31-year-old hasn't had any success since 2009 and has, of course, had major problems with staying healthy, but it doesn't hurt to see what he might have left.