Playing in slick and muddy conditions in Sunday’s 6-5 loss to the Twins, Red Sox ace setup man Garrett Whitlock paid the price with a hyperextended left knee. While Boston attempted to treat it as a day-by-day ailment,

The Boston Red Sox have placed reliever Garrett Whitlock on the 15-day injured list with left knee inflammation. The move is retroactive to May 25.

Boston Red Sox reliever Garrett Whitlock is hoping to avoid an IL stint after hyperextending his left knee. Whitlock revealed he suffered the injury during his warm-up pitches on Sunday due to the wet conditions.

The Red Sox placed Whitlock on the 15-day injured list Thursday with left knee inflammation, Gabrielle Starr of the Boston Herald reports. Whitlock had been unavailable to pitch the last few days after hurting his knee on a wet mound during his last appearance Sunday versus the Twins.

Red Sox setup man Garrett Whitlock is day-to-day with left knee soreness after he slipped on the mound while throwing a warmup pitch during Sunday’s rain-soaked game.

The Red Sox bullpen just took a major hit. Top set-up man Garrett Whitlock has been placed on the 15-day injured list with left knee inflammation, the club announced Thursday. The move is retroactive to May 25 and left-hander Tyler Samaniego has been called up from Triple-A Worcester to fill his spot.

Garrett Whitlock is hoping to avoid the injured list while dealing with left knee soreness caused by a slip on Fenway Park’s muddy mound in Sunday’s loss to the Twins. Whitlock’s stuff in that outing,

The Boston Red Sox placed right-handed reliever Garrett Whitlock on the 15-day injured list on Thursday because of left knee inflammation. The move was retroactive to Monday. In a corresponding move,

BOSTON — In his first 19 appearances of the season, Red Sox setup man Garrett Whitlock had pitched before the eighth inning just three times — and never before the seventh. On Sunday, that changed in a decision that backfired for Boston.

Whitlock incurred the injury when he slipped throwing a warm-up pitch on a muddy mound during last Sunday’s rainy loss to the Twins.