Manager Eric Wedge said he definitely would have kept Hernandez in for another inning if the back issue hadn't cropped up. But Wedge indicated on Wednesday that things were looking fine a day later.
"He's good," Wedge said. "He said it was pretty sore this morning, but he feels good, and [trainer Rick Griffin] felt he got him in a good place after the game last night. He's feeling good today, so we should be fine."
Will there be any changes to Hernandez's preparation this week before his next scheduled start, on Sunday in Cleveland?
"I don't think so," Wedge said. "I think we're OK."
Hernandez is 5-2 with an American League-leading 1.53 ERA after nine starts.
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.