The initial diagnosis was made after preliminary tests were performed on Charles' knee after he left the game. The Chiefs will know more about the injury once he undergoes an MRI.
Charles went to the ground grabbing his right leg after a non-contact injury before being helped off the field. He was cutting when his right knee appeared to buckle.
Charles had 58 yards on 12 totes and had a beautiful 26-yard reception, during which he put on a jaw-dropping, stop-and-start move to burn a defender.