Chicago Cubs pitcher Yu Darvish is reportedly out for the rest of the season following an injury. 

An MRI showed Darvish suffered a stress reaction on his right elbow, according to multiple reports, including ones from MLB's Carrie Muskat and the Chicago Tribunes Mark Gonzales.

Darvish, who has been out since late May with an arm issue, came out to warm up for the second inning in a rehab start for the Class-A South Bend Cubs on Sunday, but immediately summoned trainers and was removed from the game.

After his exit, Darvish told media in South Bend that he would undergo an MRI, and that the next step in his recovery is unclear.

Darvish has started eight games for the Cubs this season, posting a 1-3 record and a 4.95 ERA in those games. He has been on the disabled list twice this season, with his second stint caused by right triceps tendinitis.

Darvish previously made a rehab start in South Bend earlier this summer, but was quickly shut down after pain reappeared in his arm.

The hurler had been targeting a late August return to the rotation.