TAMPA, Fla. -- Yankees right fielder Nick Swisher was sent for a precautionary MRI exam on his sore left groin after completing his workout on Friday, manager Joe Girardi said.

"I think they're just being cautious," Girardi said. "He did all his running and did all his hitting. I'm not sure; I guess he felt that it moved a little bit. This could just be soreness and they're ruling everything out, but he said he felt good today."

Swisher said that he felt soreness after coming out of the batter's box on Wednesday in Dunedin, Fla., against the Blue Jays, and said that he would take advantage of Spring Training to give the injury more rest.

"On that second step, something tugged a little bit," Swisher said. "I got scared, so I just shut it down from there, but no big deal. I'll be back in there [Saturday] or the next day. Game 7 [of the World Series], I'm in there. It's not like it's one of those things."

Yanks optimistic Pettitte will return strong

TAMPA, Fla. -- There was a point this spring, CC Sabathia reveals now, that Andy Pettitte wandered over and revealed his conflicting emotions between staying home and trying to pitch another season.

Sabathia said that he told Pettitte to come back, and the ace left-hander expressed no surprise at the news that Pettitte had signed a one-year, $2.5 million non-guaranteed contract on Friday.

"Not at all, just because I know he pitched at a high level the year he went out," Sabathia said. "I know how much he loves to play, but I know how much he loves his family. It was a tough decision for him, but I think when you can still pitch the way he can, it makes it hard to just sit at home."

Sabathia said that Pettitte looked great when he was in camp as a guest instructor -- general manager Brian Cashman said the club weighed Pettitte after his Tuesday bullpen session and found him just six pounds heavier than he had been two springs ago -- and that the long layoff should have refreshed Pettitte's desire.

"Mentally, I think he'll be fresh," Sabathia said. "He hasn't done it. He's been away from it. He'll have a clear head, come in and be able to work the way he needs to. I think that'll be the easiest part. Getting to know the hitters again and setting up guys, I think, will be the tough part."

Yankees catcher Russell Martin said he thought it was "awesome" that Pettitte had decided to come out of retirement. Martin said he hopes Pettitte could be like Bartolo Colon, who came out of retirement and turned in a strong 2011 season for New York. Based upon his batting-practice sessions against Pettitte, Martin believes Pettitte's control should be there.

"He was hitting his spots," Martin said. "He was throwing it right where I want it. I'm pretty sure that's not where he's going to want to throw it when he's on the mound, but the command's still there, for sure."

Banuelos among Yankees' spring cuts

TAMPA, Fla. -- The Yankees executed their first round of roster re-assignments after Friday's 4-3 win over the Nationals in 10 innings, moving 14 players to Minor League camp.

Pitchers Manny Banuelos, Dan Burawa, Brett Marshall, Adam Miller, Ryan Pope, Graham Stoneburner and Chase Whitley, plus catchers Kyle Higashioka, J.R. Murphy and Gary Sanchez, were re-assigned to the Himes Avenue complex.

Additionally, infielder David Adams and outfielder Zoilo Almonte were optioned to Double-A Trenton, while infielder Corban Joseph and outfielder Melky Mesa were optioned to Triple-A Scranton/Wilkes-Barre.

Major League camp now stands at 56 players: 28 pitchers, five catchers, 13 infielders and 10 outfielders.

Bombers bits

• Right-hander David Robertson ran 10 sprints to test his bruised right foot on Friday and said he felt fine. He believes he may be able to throw a bullpen session by Sunday.

• Sabathia will make his next spring rotation turn in a Minor League game on Thursday, avoiding a long bus trip to Fort Myers, Fla. Right-hander David Phelps will start against the Red Sox instead.

• Yankees closer Mariano Rivera was originally listed to pitch on Thursday, but Girardi attributed it to "a mixup." Rivera is scheduled to pitch on Friday against the Astros instead.