The Athletics placed left-hander Sean Manaea on the 10-day disabled list with a shoulder strain, according to a team announcement on Sunday. The move is retroactive to April 27, when Manaea was lifted from his last start after experiencing shoulder tightness. Manager Bob Melvin told reporters that he only expects Manea to miss one start during his stint on the DL, as the team is planning to utilize right-hander Sonny Gray in his place on Tuesday.
Manaea, 25, has yet to find his footing in his sophomore season with the Athletics. Over five starts, including his abbreviated outing against the Angels last Wednesday, the left-hander carries a 5.18 ERA, 3.28 FIP and 10.0 SO/9 through 24 1/3 innings. Even when healthy, control issues have spoiled some of his more dominant outings, doubling his walk rate per nine innings from the 2.2 BB/9 mark he posted during his rookie season in 2016.
With Manaea due back in the rotation by May 7, the A’s will eventually need to clear roster space to accommodate him. Susan Slusser of the San Francisco Chronicle speculates that the decision could come down to right-handers Jesse Hahn and Jharel Cotton, though the team is still several days away from any formal announcement. Cotton has looked like two wildly different pitchers over his last five starts, tossing two-hit shutouts on his good days and getting shelled with 5-6 runs on his bad days. Hahn, meanwhile, has been a steadier presence in Oakland’s rotation, and his 2.08 ERA and eight-inning shutout should keep him in the majors a while longer, especially if he can replicate those results against the Astros on Sunday.