The Kansas City Chiefs have received a first-round playoff bye before, but Patrick Mahomes said they've never needed it quite like this season. The Chiefs clinched the AFC's top playoff seed -- which means they'll get a first-round bye and have home-field advantage throughout the postseason -- by beating the Pittsburgh Steelers 29-10 on Wednesday to reach 15-1.

Patrick Mahomes passed for 320 yards and three touchdowns and the Kansas City Chiefs locked up the top seed in the AFC for the fourth time in seven seasons with a 29-10 win over the Pittsburgh Steelers.

The Kansas City Chiefs played one of their most complete games of the season on Christmas Day, handling business against the Steelers in a 29-10 win on the road. The Chiefs (15-1) lock up the top seed in the AFC playoffs, while the Steelers (10-6) fall to second place in the race for the AFC North.