"I'm definitely improving," Cain said. "I didn't feel any pain doing drills and dry swings. It definitely felt great."
Closer Greg Holland, who was hit with a comebacker in the 10th inning on Thursday, had a thigh bruise, but was available Friday night.
Mike Moustakas was absent from the lineup on Friday, but Yost said it was just an off-day for his third baseman who battled a calf strain the last two weeks.
Dick Kaegel is a reporter for MLB.com. Kathleen Gier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.