The Arizona Diamondbacks placed left-hander Robbie Ray on the 10-day injured list Thursday because of lower back spasms.

Ray was removed from Wednesday’s start at Colorado while warming up for the start of the third inning. He gave up one run and one hit in the Diamondbacks’ 7-6 loss.

Ray, who is 10-7 with a 3.99 ERA and ranks among the NL leaders with 187 strikeouts, had an MRI exam that showed nothing irregular in his back. He missed about two months last season with an oblique injury.

“He’s had problems with his oblique in the past and those things go through your head,” manager Torey Lovullo said. “It’s quite a relief. We had to make the right decision for him moving forward instead of fast-forwarding things.”

With off days, Ray would miss only one start if he is able to return the first day eligible, on Aug. 25.

Injury report: Seattle put reliever Brandon Brennan on the injured list because of shoulder fatigue. ... Minnesota activated right-hander Michael Pineda from the IL.

Briefly: Philadelphia claimed reliever Jared Hughes off waivers from Cincinnati. Hughes is 3-4 with a 4.10 ERA this year. ... Reliever David Hernandez, released by Cincinnati on Sunday, has agreed to a minor-league deal with the New York Yankees.