Via the Star-Ledger:

Joba Chamberlain will be activated from the disabled list Tuesday, manager Joe Girardi announced after Sunday’s game. Chamberlain, who has been on the DL since Aug. 6 because of rotator cuff tendinitis, said he felt fine Sunday after his 35-pitch bullpen against live hitters on Saturday.

Girardi said Chamberlain will be available in the bullpen when the Yanks open a three-game series in Tampa against the Rays, but he would not say whether Chamberlain will reprise his earlier role as the eighth-inning setup man for Mariano Rivera.

“We’ll see,” he said.

Girardi also explained that Chamberlain won’t be activated Monday because he wouldn’t be available to pitch anyway, because he threw so many pitches on Saturday.

All things considered, I would have to think, if Chamberlain is to work out of the pen, the 8th inning will be his to own.