BOSTON (AP) Former Chicago White Sox closer, and current Boston Red Sox reliever Bobby Jenks has struggled so far this season. After his right cramped up during a recent loss to the Los Angeles Angels, Boston placed him on the disabled list.

The Red Sox said Thursday that Jenks (1-2) has a strained right biceps and placed him on the DL retroactive to Monday. He cramped up while warming during Boston’s 13-inning loss Wednesday.

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The right-hander has a 9.35 ERA in 11 appearances this season.

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Boston also placed right-handed reliever Dan Wheeler on the 15-day DL with a strained left calf. Wheeler allowed a double, home run and walked one while facing four batters during the Angels’ 5-3 win, which was interrupted for more than 2 1/2 hours because of rain.

The Red Sox called up right-hander Scott Atchison and left-hander Rich Hill from Triple-A Pawtucket.

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