Rivera says he's good to go

Yankees reliever Mariano Rivera, who has been sidelined by stiffness in his left side, can close Wednesday against the Orioles, if needed.

"I could go out there, but it is their decision," Rivera told ESPNNewYork.com Wednesday morning.

Manager Joe Girardi said he is leaning toward resting Rivera for another day. Girardi said he would prefer to be cautious, and with a day off on Thursday he could give Rivera a longer break.

"I really believe that Mo is available, but if I can, it is two more days," Girardi said.

After finishing their three-game series against Baltimore (1:05 p.m. ET), the Yankees are off Thursday before playing 17 straight days, starting with a three-game series Friday in Boston.

Rivera added that the discomfort in his side "feels better," and believes he could have pitched Tuesday night.

"It wasn't necessary," Rivera said of the second consecutive day off.

On Tuesday, Joba Chamberlain became the first Yankees reliever not named Rivera to record consecutive saves since Juan Acevedo in 2003 and Mike Stanton in 1998. The Yankees won both games 4-1.

Girardi said he will not use Chamberlain on Wednesday. He wasn't sure who he would turn to in the ninth.

Andrew Marchand covers baseball for ESPNNewYork.com. You can follow him on Twitter. Information from The Associated Press was used in this report.