NEW YORK -- Right-hander David Aardsma took a step toward his Yankees debut on Tuesday, when he started and pitched a scoreless inning for the Gulf Coast League Yankees. He walked one and struck out two.

"It felt amazing to get out there today," Aardsma tweeted. "Threw well, but the job isn't done. Need to #keepworking if I want to get to the #yankees."

The Yankees signed Aardsma in February, knowing he would start the season on the disabled list after undergoing Tommy John surgery last July. Aardsma tweeted he would pitch again Saturday for the GCL Yankees, but manager Joe Girardi is unsure of when the reliever could join the team in New York.

"I have not been given a time frame on him," Girardi said, "but obviously, he's a lot closer than when we left."

Although neither Aardsma nor Joba Chamberlain have specific time frames to return from their injuries, Girardi envisions both joining the bullpen at some point this season. Starter Michael Pineda, who will not return from his shoulder surgery this year, is rehabbing with Chamberlain in Tampa, Fla., and is impressed with the right-hander.

"He's been looking good," Pineda said. "I've seen a couple bullpens from this guy, and he looks good in the bullpen right now."

Pineda visits Yanks, progressing with rehab

NEW YORK -- Michael Pineda showed up in the Yankees' clubhouse Tuesday after visiting doctors in New York, but he boarded a plane to continue his rehab in Tampa, Fla., before the game against the Braves.

Pineda is taking part in physical therapy every day and expects to begin throwing in mid-September after undergoing arthroscopic surgery on May 1 to repair a tear in the labrum of his right shoulder. He wants to be ready for Spring Training next year.

"The doctors said everything is great right now, so we're continuing with this plan," Pineda said. "Everything is great. I'm feeling great right now. I'm feeling much better."

The 23-year-old right-hander saw his teammates in New York for only the second time since experiencing shoulder discomfort and velocity issues during Spring Training. He has yet to throw a pitch for the Yankees since they acquired him in a trade with the Mariners last offseason, but he said he watches their games "all the time" in Tampa.

"I want to stay here," he said, "but everything is good."

Swisher makes return to Yankees' lineup

NEW YORK -- Nick Swisher took part in his regular early batting practice routine Tuesday with Robinson Cano and hitting coach Kevin Long, and he came out of it feeling good enough to return to the Yankees' lineup and play right field against Atlanta.

He sustained a bone bruise in his left thigh Saturday, when he collided with Nationals catcher Jesus Flores' knee while sliding into home plate. Swisher took Sunday and Monday off, but he took swings and ran Tuesday afternoon and felt fine.

"I feel great, I feel good," Swisher said. "I feel a little bit of pain, but they told me this isn't an injury you can hurt worse unless you bang it on something again. Hopefully, that doesn't happen."

Swisher felt discomfort taking batting practice Monday, particularly when hitting left-handed, but he said there are no restrictions for his return to the lineup. Manager Joe Girardi watched Swisher run and said he would have considered using him as a designated hitter if he felt Swisher was not 100 percent, but that was not the case.

Bombers bits

• The Yankees won 10 games in a row in May 2005, but their current winning streak marks the first time they have won 10 consecutive games all against teams with a winning record, according to the Elias Sports Bureau. They also have a 10-game winning streak against National League opponents dating back to last season.

• Lou Gehrig was born in New York City 109 years ago today. The Iron Horse played 17 seasons for the Yankees, including a stretch of 2,130 consecutive games.