The Anaheim Angels have placed right-hander Jordan Walden on the 15-day disabled list because of a strained biceps.
The move made Sunday before the Angels' played the New York Yankees is retroactive to July 9.
Walden has been struggling of late. He gave up five runs in four appearances since July 1 - he only allowed three runs over nine appearances in June. He is 2-2 with a 3.86 ERA in 31 appearances overall.
Walden says his shoulder was bothering him and compensating for that caused the biceps injury right before the All-Star break.
Outfielder Kole Calhoun has been recalled from Triple-A Salt Lake to take Walden's roster spot. Calhoun's bags were lost en route and he had to borrow cleats and a glove.