"Well, I think you have to see how he throws and how sharp he is," manager Joe Girardi said. "See if he needs another one, or if he's capable of being activated."
Phelps was a starter when he was placed him on the disabled list with right elbow inflammation, but with the season winding down, the Yankees have decided to use him out of the bullpen to get him back faster.
Jamal Collier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.