PHILADELPHIA — Phillies right-hander Jake Arrieta says he’s likely going to have season-ending surgery soon because of a bone spur in his pitching elbow.

Arrieta has been pitching through pain for several starts but his inability to go more than five innings led him to shut it down. He’s scheduled for an MRI on Thursday and will determine his course of action afterward.

Arrieta won the 2015 NL Cy Young Award with the Cubs. He has been mediocre since he joined the Phils in March 2018.