David Aardsma (elbow) has already thrown four bullpen sessions and is expected to be on a normal routine during spring training. Aardsma appeared in just one game for the Yankees last season while working his way back from Tommy John surgery. He's nearly 19 months removed from the operation at this point, so the Yanks are expecting him to be back to his regular self. Aardsma was a weapon out of the Mariners bullpen from 2009-10, posting a 2.90 ERA while striking out over a batter per inning.