The Yankees bullpen has taken another hit.

Keynan Middleton landed on the 15-day injured list Wednesday, retroactive to Sunday, with right shoulder inflammation.

Lefty reliever Matt Krook was recalled from Triple-A Scranton/Wilkes-Barre to take his spot in the bullpen.

Middleton had been a quality addition to the relief corps since the Yankees acquired him from the White Sox at the trade deadline.

In 11 games with the Yankees, the right-hander had given up just one run across 13 ⅓ innings while striking out 17.

It marked the second time in the last four days that the Yankees have lost a reliever to the IL, with Ian Hamilton suffering a groin strain over the weekend.

In two games with the Yankees this season, Krook has given up seven runs across three innings.

He has been much better at Triple-A — pitching to a 0.92 ERA in 29 ⅓ innings — though his command has been an issue.