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5/22/2014 5:00 P.M. ET

Pettibone has shoulder tear, but no surgery for now

Triple-A righty, who might've helped with Lee on DL, prescribed cortisone shot, rest

MIAMI -- Phillies Triple-A right-hander Jonathan Pettibone has a small tear in his right shoulder, but for now, the treatment is a cortisone injection and rest.

Pettibone received a second opinion on his injured shoulder from noted orthopedist Dr. James Andrews on Wednesday, and Phillies general manager Ruben Amaro Jr. said there was no difference in the original diagnosis. Pettibone was presented with three options: have exploratory surgery, received a PRP (platelet-rich plasma) injection or receive a cortisone injection.

This is Pettibone's second cortisone injection this year. He received his first in February.

"He's going to rest it until [May 31] and then start a throwing program," Amaro said. "I don't have any timeline after that. It'll just depend on how he feels, how he's progressing."

But it is a SLAP tear (Superior Labrum Anterior to Posterior), which can be serious.

"It depends on the player and how big it is," Amaro said. "It's not a big one. It's pretty small. But it's uncomfortable for him. You pitch to comfort. ... They can get better. You can strengthen the muscles and tissue around it. Some of them do and some of them don't."

Pettibone's shoulder is a legitimate concern, because this is the third time he has had to stop pitching in less than a year because of it. He finished last season on the disabled list before falling behind schedule in Spring Training because of shoulder pain.

His health also becomes more important with Cliff Lee on the DL with a left elbow injury.

"We'll see how he manages through it," Amaro said of Pettibone. "Who was the closer from Cleveland we passed on [before the 2007 season]? Joe Borowski. He had a full thickness tear in his labrum and he pitched through it. A lot of it depends on the pitcher and the comfort."

Rollins passes Ashburn for second on Phils' hits list

MIAMI -- Jimmy Rollins only has one more man to catch.

The Phillies shortstop singled to center field in the third inning of Thursday's 4-3 loss at Marlins Park to move into sole possession of second place on the franchise's all-time hits list. Rollins has 2,218 hits, which moved him past Richie Ashburn (2,217).

Rollins needs just 16 more hits to catch Mike Schmidt, who holds the record with 2,234.

"It's amazing what he's done his whole career," Phillies right fielder Marlon Byrd said of Rollins. "You start looking around, and he has Hall of Fame numbers. He's going to be the leader in most categories for this organization by the time he's finished here. It's just impressive what he's been doing."

Rollins is having his best season offensively since he won the National League MVP Award in 2007.

"I think last year he had the baby, and it's a little bit different when you have your first-born," Byrd said. "You don't get much sleep. The focus is there, but you're just tired. He came in this year and his offseason routine was probably a little bit better, he got some swings in and came into Spring Training ready and worked on some things. From Day 1, he's been right and showing that Jimmy Rollins is still here. He hasn't gone anywhere."

Phillies to call up Buchanan for Saturday start

MIAMI -- The Phillies announced Thursday that Triple-A right-hander David Buchanan will take Cliff Lee's spot in the Phillies' rotation on Saturday.

The club will make room for Buchanan on the 25-man roster before the game against the Dodgers. The start at Citizens Bank Park will mark Buchanan's Major League debut.

Lee is on the disabled list with a strained left elbow, but the Phillies hope he does not miss significant time. That might be wishful thinking, but in the meantime, Buchanan, who was one of the Phillies' bright spots in Spring Training, will pitch in his place.

The 25-year-old right-hander is 5-1 with a 3.98 ERA in nine starts with the IronPigs.

Revere starts for first time in more than a week

MIAMI -- Phillies center fielder Ben Revere returned to the starting lineup Thursday for the first time since May 14.

Revere missed a couple of games last week because of a stomach virus, but he had been available to play since Sunday. Revere appeared as a pinch-hitter in Wednesday's 14-5 loss to the Marlins at Marlins Park, his first appearance in a game since May 14.

Revere is hitting .266 with a .577 OPS.

Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.