Betancourt had a minor collision with the Indians' Jamey Carroll as he turned at second base in a futile double-play attempt in the first inning of Wednesday's 4-2 loss. Betancourt hopped around a bit but remained in the game.
"I was concerned a little bit coming in here with Yuniesky's contusion -- he got banged up by Carroll a little yesterday," Royals manager Trey Hillman said. "It's a bruise and he played the rest of the game with it. It's a little sore today but he's good to go."
Hillman said Betancourt's quad was hit by Carroll's elbow as he slid into second base.
Betancourt joined a line of ex-Mariners who have adjoining lockers in the visiting clubhouse -- Jose Guillen, Miguel Olivo, Willie Bloomquist and Gil Meche were the others.
Guillen has been running the outfield and taking batting practice as he tries to return from the disabled list with a right knee injury by next Tuesday, although as of now that's not definite.
"As we wind down to the end of the month, we'll try to get a target date. We don't have anything specific yet," Hillman said. "We have specific activities we need to see him perform -- run the bases, full-speed fly balls to go along with the hitting and the regular routine."
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.