Cano dove to his right, corralling it, but second-base umpire Jeff Nelson ruled the runner safe when Cano's foot appeared to lift off the bag. Meanwhile, Aoki scored from third to give Kansas City a 1-0 lead.
Mariners manager Lloyd McClendon came out and issued a challenge. After a review, it ruled that Cano's foot maintained contact with the bag and the runner was out via the force.
Aoki's run still counted.
Adam Lewis is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.