Jake Arrieta will likely have season-ending surgery soon because of a bone spur in his pitching elbow.

The Philadelphia Phillies placed the right-hander on the injured list Wednesday. He pitched through pain for several starts, but his inability to go more than five innings led him to shut it down.

"I wanted to try and make it work for as long as possible," Arrieta said. "I realized that I'm not able to give the team what it needs. The pain is something I can deal with, but it's the loss of feel and the ineffectiveness as the outings wear on. I think that the time is right to make it happen now and get a guy in the rotation that has pitched really well for us and give him an opportunity to get back to the form where he was at earlier in the season for us. I think we'll be in good hands."