OAKLAND, Calif. (AP) -- The Oakland Athletics placed reliever Ryan Cook on the 15-day disabled list with a strained right forearm Friday, sent struggling starter Dan Straily to Triple-A Sacramento and called up relievers Fernando Rodriguez and Joe Savery.
The A's made the moves before hosting the Washington Nationals on Friday night.
Cook was injured during Wednesday's doubleheader against Seattle. Cook and manager Bob Melvin both said they don't believe the injury is serious, that it's just a strain in the middle of the forearm and not anything related to the tendon.
Straily is 1-2 with a 4.93 ERA in seven starts. Melvin said the team wants Straily to work on his fastball command, which has been inconsistent and led to him falling behind hitters.
Straily's demotion should keep Drew Pomeranz in the rotation. Pomeranz pitched five scoreless innings to help the A's win the second game of Wednesday's doubleheader.
Rodriguez was 1-0 with a 0.73 ERA in 11 appearances with Sacramento this season. He is coming off elbow ligament replacement surgery and last pitched in the majors with Houston on Oct. 3, 2012.
Savery was 4-0 with one save and a 3.86 ERA in 10 appearances for Sacramento.
Melvin also said center fielder Coco Crisp was scheduled to have an MRI on his strained neck Friday. Crisp was injured when he crashed into the wall to make a leaping catch in Wednesday's opener.
Melvin said Crisp is unlikely to play Saturday.
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