The 26-year-old right-hander underwent Tommy John surgery last June and then had an open dislocation of his right ankle when he fell off a trampoline in March. He hasn't pitched in the Major Leagues since June 5, 2011.
"He's got another two-inning outing coming," general manager Brian Cashman said Sunday. "He's coming off an extended period of time. We were talking about his rehab schedule yesterday and manipulating it as we go along."
Cashman said Chamberlain could be back with the team sooner than the full 30 days it usually requires relievers to get ready in Spring Training, but the team needs to see him throw back-to-back successful outings before a Major League callup is discussed.
Manager Joe Girardi hadn't given previous thought to Chamerblain's role once he returns, but said on Sunday he would consider using him in late-inning work. He would have no reservations using him in a situation because of prior injuries.
"When he's here, the gloves are off," Cashman said. "He looks good."