The Athletics placed May on the 15-day injured list Wednesday with anxiety-related issues, Matt Kawahara of the San Francisco Chronicle reports.
General manager David Forst confirmed in a statement that May's IL stay is related to his mental health. It's entirely unclear when May, who has a 12.00 ERA and 3.17 WHIP through eight appearances this season, will be back on the active roster. With May and Dany Jimenez (shoulder) both on the shelf, Zach Jackson looks like the best bet for saves out of the Oakland bullpen, though those opportunities are likely to be few and far between for the club, which takes a 3-15 record into Wednesday's game against the Cubs.