A's ace Sonny Gray has been put on the 15-day disabled list because of a strained trapezius muscle near his right shoulder blade.

Oakland made the move Sunday, two days after Gray threw three wild pitches and walked four while retiring just 10 batters in an 8-3 loss to the Yankees. Gray is 3-5 in nine starts with a 6.19 ERA, third-highest in the AL among qualifying pitchers.