A season after finishing third in the National League Rookie of the Year voting, Worley finishes his sophomore campaign with a 6-9 record and a 4.20 ERA. The right-hander started off the season well, but couldn't regain his 2011 form after a three-week stint on the disabled list in May. That was no more evident than over his last five starts, when he went 0-3 with a 6.75 ERA and lasted six innings just once.
Right-hander Tyler Cloyd, promoted from Triple-A Lehigh Valley on Wednesday to start for an ill Cole Hamels, will take Worley's place in the rotation. Cloyd was named the International League's Most Valuable Pitcher on Tuesday.
"It's something I thought I could make it through," Worley said. "We all kind of talked it over. We feel like this is the best thing to do right now, have the surgery now and prepare for next season. [I'll] get a couple extra weeks to work on making sure my arm's good and conditioning myself."
The recovery time from the surgery, for which an official date had not yet been set as of Wednesday afternoon, was only a couple weeks, Worley said. He should be right on track with the rest of his teammates come Spring Training.
Worley maintained that the loose bodies were not affecting his pitching.
"I think, if anything, it was just me not making pitches," he said.
But Rich Dubee, the Phillies pitching coach, thought the elbow condition served as a distraction for Worley.
"His demeanor was different," Dubee said. "His personality was different. His mound presence was extremely changed. And those aren't good things. Those aren't things we want engrained in him for the rest of his career for sure. It was a good time to stop him and get him straightened up."
General manager Ruben Amaro Jr. said it was a good time for Worley to reset for 2013.
"I think physically, he probably could've continued to pitch," Amaro said. "But I don't know if it was going to do him any good, and I don't know if it was going to do the club any good."
Jake Kaplan is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.