It's not Joakim Soria or Ryan Madson, but the Yankees acquired a reliever rehabbing from Tommy John surgery. They claimed David Herndon off of waivers from Toronto.
Herndon isn't expected to return until midway through the 2013 season. David is 27 years old, and has spent the last 3 seasons with the Phillies, where he threw to a 3.74 ERA. He threw 7.2 innings this past season before going to the DL, and struck out 8 batters while walking only 1.
I wouldn't expect Herndon to contribute much to the Yankees, but at this point why not take a shot?