Angels reliever Keynan Middleton has damaged UCL in right elbow

An MRI performed on Los Angeles Angels reliever Keynan Middleton revealed damage to the ulnar collateral ligament in his right elbow, the team announced Monday.

Middleton is seeking a second opinion, the team said.

He has been placed on the 10-day disabled list.Right-hander Felix Pena was recalled from Triple-A Salt Lake.

Middleton, 24, was removed from Sunday's game against the Twins in the top of the eighth inning because of elbow discomfort with a 1-1 count on Minnesota's Eddie Rosario.

Middleton had just returned from the disabled list last Thursday after being sidelined with elbow inflammation.

He leads the Angels with six saves. He has a 2.04 ERA in 17 innings over 16 appearances, with 16 strikeouts and nine walks.