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Patrick Mahomes was ruled out of Sunday’s game after sustaining a concussion in the third quarter. Mahomes had to be helped off the field and taken into the Chiefs’ locker room after a hit from Cleveland linebacker Mack Wilson left him dazed.

On third-and-1 from the Kansas City 48-yard line, Mahomes rolled right on a speed option play and kept the ball. Coming in from Mahomes’s left, Wilson wrapped his left arm around Mahomes’s neck, dragging him to the ground and causing Mahomes’s head to hit the ground. Wilson then appeared to hold on to Mahomes as he rolled to the side.

Unable to get up, Mahomes needed teammates to steady him as he walked off the field. The veteran backup Chad Henne came in to replace him.

Henne had thrown only nine passes over his three seasons with Kansas City until Week 17, when the Chiefs rested Mahomes and several starters against the Los Angeles Chargers. Playing the full game, Henne completed 23 of 32 passes for 218 yards and two touchdowns. The Chiefs had hoped he wouldn’t receive another snap this season, but with Henne likely playing the rest of the game — and, perhaps, beyond — they’re sure glad he got that experience two weeks ago.