FORT MYERS, Fla. -- General manager Brian Cashman said again on Monday that they won't consider it. The left-hander who just turned 20 on Sunday thinks he can handle it.

Whether or not there's any shot of Manny Banuelos pitching for the Yankees this season, he was impressive Monday night in 2 2/3 scoreless innings against an Opening Day-caliber Red Sox lineup.

"Yeah, I do. I think I'm ready," a confident Banuelos said afterward at City of Palms Park. "Just get a little bit better [at] things and I'm ready."

Making a spot start for the injured Sergio Mitre, Banuelos showed his stuff with a pair of strikeouts -- Carl Crawford in the first inning on a fastball and Kevin Youkilis in the third inning on a changeup, the latter coming on his 53rd and final pitch of the night. Banuelos threw 28 strikes and gave up two hits and three walks, working out of a bases-loaded, one-out jam in the second. The walks were his lone blemish.

"It's the first time he walked a few guys. There could have been a little bit [of nerves] there," manager Joe Girardi said. "But I thought he handled it well. I think he has three quality pitches, and he can locate his fastball. The command has to get better, and I think it'll continue to get better."

Asked again before the game if there was a chance that Banuelos could break camp with the Yankees, Cashman was again firm.

"He's not making this team," he said.

Well, he was mostly firm.

"We always have the right to change our minds," Cashman said. "But I don't mean to open a can of worms in saying that there's a chance that he's going to be pitching for us."

Banuelos, who wasn't nervous about facing a powerful Boston lineup, returned to the clubhouse to find about 10 text messages waiting for him, and he said his family in Mexico was watching the game on TV.

"It was a big day," said Banuelos. "My last time when I faced Boston, it was different. Today, it was the big league hitters. I thought a lot about this game. It's a good team. That was good for me."

The whole spring has been good. In 7 2/3 innings this spring, Banuelos has not allowed a run.

"Let's put it this way: probably most people couldn't pronounce his name before camp," Cashman said. "I think everybody pronounces it now accurately."

Mitre, Joba dealing with left oblique injuries

FORT MYERS, Fla. -- The Yankees will wait until later in the week to send Sergio Mitre and Joba Chamberlain back to the hill because of left oblique injuries.

"Right now, it's a low-level concern," general manager Brian Cashman said Monday evening. "If it changes, we'll let you know. If it was a bigger concern right now, I'd tell you, 'Hey, this looks like it could be a while.' Could it play into a while? That's what we're trying to prevent."

Mitre, who was slated to start Monday night's game against the Red Sox, will play catch Tuesday. Top pitching prospect Manny Banuelos started in Mitre's place.

Manager Joe Girardi said Chamberlain felt the oblique flare up in his last outing a week ago.

"Joba said he felt good today," Girardi said. "So, you know, you try to get them both out there this week and keep your fingers crossed."

Mitre's trying to show he belongs in the rotation, and Cashman said Mitre wasn't thrilled about bowing out.

"He wanted to pitch," Cashman said. "Girardi had to do a bit of a wrestling match with him. He almost had to get me on the phone. [He said], 'If I have to call you, answer the phone, because the number from Legends [Field] is unknown.' ... It just doesn't make sense to try to [pitch] right now."

Mitre was sent to the disabled list last season for about five weeks because of an oblique strain on the same side, but this injury isn't believed to be as serious.

In general, though, oblique injuries can be particularly nagging, hence the precautionary moves.

"Sometimes they pretend that they're nothing and they become something," Cashman said. "That has happened, and it can happen."

Worth noting

The bus the Yankees' coaches were traveling on from Tampa to Fort Myers on Monday was hit by a bird, which flew into the front windshield. No one on board was hurt. ... An announcement as to who will be the club's No. 2 pitcher, A.J. Burnett or Phil Hughes, could come as soon as Wednesday, manager Joe Girardi said Monday. "We talked about it briefly, but we haven't made a final decision," he said. "We just haven't really sat down and talked about it. ... I could even announce it after the off-day, after I have a chance to talk to [the pitchers]." ... Jesus Montero's double with one out in the third inning off former Yankees reliever Alfredo Aceves set up New York's only run in a 2-1 loss to the Red Sox on Monday. It was Montero's first extra-base hit this spring. ... Dellin Betances took the loss and allowed both Boston runs in 1 1/3 innings. "He was a little wild, but he didn't cave," Girardi said. ... Mark Prior did not make Monday's trip as he was scheduled to because he was ill, Girardi said.