"Greg felt fine today," Yost said after the game. "I was going to go up to the point where Greg said, 'I don't feel anything,' and then give him another day. So we'll see how he feels [Thursday] and if he feels fine, he'll be OK."
The Royals open a series against the Red Sox on Thursday at Kauffman Stadium.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.