MIAMI -- Peter Moylan won't be serving as the Braves' closer while Rafael Soriano rests his ailing right elbow. Instead, Moylan also finds himself on the 15-day disabled list with his own elbow problem.

When the Braves announced Moylan was going on the disabled list on Tuesday, they revealed that he had a right elbow strain. But there is reason to believe that this strain could be much worse than the one Soriano was diagnosed with last week.

"There's so much fluid in there built up [in Moylan's elbow]," said a concerned Braves manager Bobby Cox on Tuesday, before beginning at three-game series against the Marlins with his top two relievers on the disabled list.

An MRI taken in Atlanta on Monday led the Braves to be concerned about Moylan's elbow. But before making a determination about his future, they have asked the right-handed reliever to get a second opinion from noted surgeon Dr. James Andrews.

Moylan will make the often ill-fated trip to Birmingham, Ala., on Wednesday to visit Andrews, who will likely be able to provide more specifics about the injury and whether the Braves will be able to count on the Australian right-hander again any time in the near future.

"He was seen and examined by physicians in Atlanta," Braves head athletic trainer Jeff Porter said. "He had several studies, including an MRI and a bone scan. He has been diagnosed and he's seeking a second opinion with Dr. Andrews tomorrow."

Since surrendering a game-ending homer to Nationals third baseman Ryan Zimmerman on Opening Night, Moylan has made six scoreless appearances and limited opponents to a .222 batting average.

"You can't throw any better than he's thrown," Cox said.

Moylan's finest outing might have come on Friday night, when a scoreless ninth against the Nationals gave him his first save of the season. While facing Cristian Guzman, the Braves right-hander felt a twinge. But he finished Guzman with a strikeout, threw a couple of 97-mph fastballs and didn't feel any alarming pain after finishing the inning with a strikeout of Zimmerman.

"We'll just mix it up and do the best we can to sneak it through, until Soriano comes back," Cox said.

Soriano will likely play catch on Wednesday, and the Braves don't seem concerned that he could have a lingering problem.

Buddy Carlyle was recalled from Triple-A Richmond to take Moylan's spot on the 25-man roster. Carlyle will be available for long relief if necessary the next couple of days. But it appears he might start Friday night's series opener against the Dodgers at Turner Field.