NEW YORK -- Phil Hughes took the first steps toward his return to a mound on Friday, making 30 throws from a distance of 50 feet at Yankee Stadium.

"That went fine," Yankees manager Joe Girardi said. "He'll probably have something every day; it'll continue to progress, but he did start his throwing program today."

Hughes has been on the disabled list since April 15 with what the Yankees have listed as right shoulder inflammation, though the right-hander was sent to a St. Louis-based specialist to determine if he was suffering from thoracic outlet syndrome.

The team has expressed optimism that Hughes, 24, could be back on a mound within eight weeks. He had a 13.94 ERA in three starts, suffering from a drop in velocity.

-- Bryan Hoch

Colon defers to MLBPA in surgery inquiry

NEW YORK -- Bartolo Colon declined to directly address questions on Friday regarding a controversial procedure performed last year to repair ligament damage and a torn rotator cuff, helping to revive his stalled big league career.

Speaking to reporters after the Yankees' 5-4 loss to the Red Sox, Colon said that he would let the Major League Baseball Players Association handle all inquiries concerning the issue.

"I'm sure of myself -- I'm sure about the aspect of what I've done," Colon said through an interpreter. "They know the right and wrong of the situation. They know more."

The New York Times first reported that Colon was treated in April 2010 by Dr. Joseph R. Purita, who has used human growth hormone in similar treatments. Purita has denied using HGH in Colon's case.

MLB is investigating the procedure, which Yankees general manager Brian Cashman said he was unaware of when the club signed Colon as a free agent in January. Use of HGH is banned by MLB.

Purita said that he traveled to Colon's home in the Dominican Republic for the procedure, in which he took fat and bone marrow stem cells from Colon and injected them back into the 37-year-old's right shoulder and elbow.

Colon made the Yankees' roster as a long-shot candidate this spring and has pitched in the rotation since Phil Hughes was lost to injury. Colon is 2-2 with a 3.74 ERA in eight games (five starts).

-- Bryan Hoch

Fans make up for audio failure in the Bronx

NEW YORK -- When Mark Teixeira walks to the plate at Yankee Stadium, one of two songs announces his presence: Twisted Sister's "I Wanna Rock" or Bon Jovi's "Bad Medicine." But when the Yankees' first baseman came to bat in the bottom of the ninth inning of Friday's 5-4 loss to the Red Sox against closer Jonathan Papelbon, the only sound he heard was the fans' cheers.

An audio failure left Yankee Stadium without any sound from the middle of the eighth inning until the game's conclusion. That problem silenced music, sound effects, public-address announcer Paul Olden and between-inning promotions. It even forced official scorer Jordan Sprechman to walk through the press box and repeat his announcements of scoring decisions and pitching lines.

But Yankee Stadium was far from quiet. A season-high crowd of 48,254 made itself heard during the Yankees' ultimately futile rallies in the eighth and ninth innings. New York did manage to scratch one run each off Daniel Bard and Papelbon.

"They made up for it," center fielder Curtis Granderson said of the fans. "You get a chance to see the loyalty and rivalry all in one. They were absolutely amazing. They gave us enough energy to be able to come back, but we just weren't able to go ahead and do it."

The Yankees said the sound system was shut down as a result of a low water-pressure reading. Other less visible -- and audible -- systems were also affected. By the end of manager Joe Girardi's postgame news conference, workers had fixed the problem, and music was played in the stadium's bowl.

Wrigley Field is famous for eschewing loud artificial noises, but Friday's situation is a rare one in the Major Leagues.

"I don't think so," Bard said when asked if he had previously played in front of failed speakers. "I've seen lights go out. It kind of changed the whole environment. It was still pretty loud that inning I was out there."

"I was wondering what was going on," Granderson said. Referring to Alex Rodriguez, he added, "I saw a video I think of Alex and was wondering what was happening. No announcement was made for it. And we just continued and went from there. But the crowd did a great job being enough audio for us."

-- Thomas Boorstein

Noesi adds flexibility to Yanks' bullpen

NEW YORK -- The Yankees shuffled their bullpen before Friday's series opener against the Red Sox, recalling right-hander Hector Noesi from Triple-A Scranton/Wilkes-Barre and optioning right-hander Buddy Carlyle.

Yankees manager Joe Girardi said that Noesi could be utilized in a long-relief role. Noesi was on the Major League roster from April 13-21 but did not appear in a game.

"We felt with Hector, it is his day to pitch in the starting rotation, so he can give you a ton of pitches," Girardi said.

Noesi was 1-1 with a 3.92 ERA in four starts for Scranton/Wilkes-Barre. He made just four appearances this spring for New York after being delayed by visa issues.

Carlyle was 0-1 with a 2.70 ERA in seven appearances spanning 6 2/3 innings and had pitched in back-to-back games against the Royals, throwing a total of 60 pitches over the Yankees' last two contests.

Girardi said that the Yankees decided not to make a move with right-hander Amaury Sanit, who made his Major League debut with 4 2/3 innings of relief in Thursday's 11-5 loss to Kansas City.

"Sanit is a little bit more stretched out than Buddy," Girardi said. "We just feel that we have coverage with Hector here today, and if we have to make another move, we have to make another move."

-- Bryan Hoch

Bombers bits

Right-hander Rafael Soriano was considered available to pitch on Friday before the series opener against Boston. He underwent a precautionary MRI exam on Wednesday that revealed inflammation in his pitching elbow. ... Righty Carlos Silva has been promoted to Double-A Trenton. He had a 2.57 ERA in two starts at Class A Tampa, throwing four scoreless innings in Monday's start against Lakeland. ... Alex Rodriguez was clipped in the back of the helmet during batting practice on Friday when a ball off Mark Teixeira's bat ricocheted off the batting cage. Rodriguez was fine, though he was surprised.