McKinnon turned in three carries for four yards and three catches for another 21 yards and a touchdown during Friday's preseason game versus the Cardinals.
McKinnon was brought to Kansas City with the knowledge that he specializes as a receiving threat out of the backfield. While he was unable to get much done as a runner Friday, he took advantage of his opportunities as a receiver, snaring a five-yard touchdown pass midway through the third quarter. Per John Dillon of USA Today, McKinnon is in an important three-way battle with Darwin Thompson and Derrick Gore to claim the No. 3 running back spot behind Clyde Edwards-Helaire (ankle) and Darrel Williams (head), so the third preseason contest could be even more important.