Hanrahan was just DA'd by the dodgers to make room for Beaz and Carter. He is only 24 And This Is From Rotoworld.com / LA Times:

Dodgers designated RHP Joel Hanrahan for assignment.
Chuck Tiffany wasn't on the 40-man roster, so the Dodgers had to free up a spot as a result of the Danys Baez trade. Hanrahan, once regarded as one of the team's top prospects, has had his stock drop two years running. There's a good chance that he'll clear waivers.