The Athletics have placed southpaw Sean Manaea on the 10-day disabled list, retroactive to April 27, with a left shoulder strain. Manaea left his start after two innings Wednesday against the Angels with shoulder stiffness, but there was hope that he’d avoid a DL stint.
In five starts and 24 1/3 innings this season, the 25-year-old Manaea has pitched to a 5.18 ERA, largely thanks to a 4.44 BB/9 and a 53.8 percent strand rate. Manaea doled out only 2.3 free passes per nine innings and stranded runners at a 75 percent clip last year, when he logged a 3.86 ERA during a 144 2/3-frame rookie campaign. Encouragingly, Manaea has experienced an uptick in strikeouts (9.99 K/9), ground-ball rate (63.9 percent, up from 44.2 in 2016) and swinging-strike percentage (13.8, an increase over last year’s 11.8) so far this season.
With Sonny Gray set to make his season debut Tuesday, the A’s rotation will simply swap him for Manaea for the time being. Kendall Graveman, Andrew Triggs, Jharel Cotton and Jesse Hahn will continue to comprise the rest of Oakland’s starting staff.