Athletics sent LHP Felix Doubront outright to Triple-A Nashville.
Felix Doubront (elbow) is participating in sock throws.
Athletics transferred LHP Felix Doubront from the 15-day disabled list to the 60-day disabled list.
Felix Doubront underwent Tommy John reconstructive elbow surgery on Tuesday.
Felix Doubront is scheduled to undergo Tommy John reconstructive elbow surgery on Tuesday.
Felix Doubront will go for a second opinion on his left elbow.
Athletics placed LHP Felix Doubront on the 15-day disabled list with a sprained left elbow.
Felix Doubront left Saturday's start against the Giants with left forearm tightness.
Felix Doubront has won the fifth spot in the Athletics' rotation.
Felix Doubront said he's okay after getting hit by a comebacker Saturday against the Giants.
Felix Doubront allowed one run over four innings in a start Saturday against the Giants.
Felix Doubront struck out six over three scoreless innings in Wednesday's win over the White Sox.
Felix Doubront was hit hard in his Cactus League debut on Friday, surrendering two runs on five hits over his two innings of work against the Diamondbacks.
Athletics manager Bob Melvin said he plans to use Felix Doubront in a swing role this season.