There's no definitive timetable for Edgin's return.
"They don't know exactly how long. I've heard four weeks, I've heard six weeks," Edgin said. "You don't know exactly how long it's going to take for a bone to heal."
Edgin said he first felt pain when the Mets were in Pittsburgh from July 12-14, but figured it was just a normal ache. He also said it wasn't an issue when he was on the mound in subsequent games, but rather once the adrenaline wore off after games. It would be especially painful in the mornings before he loosened up.
But since he was pitching well, Edgin, who's allowed only two runs in 23 outings since joining the Mets on June 10, wanted to pitch through it.
After pitching in Miami on July 29, though, he couldn't do that any longer. It hurt more than it normally did, and Edgin decided to go through with the MRI that showed the fracture on Friday. Edgin said he doesn't know what caused it.
"It kind of caught me off guard this morning," Edgin said. "I'm kind of thinking, 'All right, let's just take a couple days and get it healed back up.' I found out otherwise."
Edgin said it's frustrating to go on the DL since he had been giving the Mets solid performances out of the bullpen. Since being called back up to the Major Leagues in June, Edgin was 1-1 with a 3.77 ERA in 34 games.
Meanwhile Feliciano, who hasn't pitched in the big leagues since 2010, will take Edgin's spot in the bullpen. With Double-A Binghamton, Feliciano had a 1.26 ERA in 14 games before being promoted to Las Vegas on July 23.
Feliciano had only thrown two scoreless innings in Triple-A.
He signed a two-year contract with the Yankees in 2011, but persistent shoulder problems never allowed him to pitch in the Major Leagues.
Feliciano led the National League in appearances from 2008-10 with 266.