New York Mets starting pitcher Jacob deGrom is expected to undergo season-ending elbow surgery, the Major League Baseball team said on Saturday.
DeGrom was scheduled to pitch on Sunday against the Washington Nationals, his first outing since September 1, but was scratched after suffering a setback following his bullpen session on Friday.
Mets general manager Sandy Alderson said it was likely deGrom would need surgery to repair scar tissue in the ulnar nerve of his right elbow.
"I think it's unlikely that he will pitch the rest of the season," he told reporters.
"It's likely that this will require a surgical repair, not a significant surgical procedure at least with respect to risk going forward.
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"But it's something that will have to take place at some point.
DeGrom, 28, is 7-8 with a 3.04 ERA in 24 appearances this season.
He helped the Mets reach the World Series last year and captured the National League Rookie of the Year in 2014.
