Andy Reid has become only the fourth head coach in NFL history to win 300 games after the Kansas City Chiefs defeated the Houston Texans to advance to the AFC Championship.

Kansas City #Chiefs head coach Andy Reid comments on quarterback Patrick Mahomes’ latest unbelievable play: ‘This is unreal’ | @EdEastonJr

The Chiefs set a number of milestones in Saturday's win, including the 300th career coaching win for Andy Reid. After the game, in the locker room, Chiefs owner Clark Hunt awarded Reid a game ball and spoke a few words about the big achievement.

The Kansas City Chiefs held off the Houston Texans to reach the AFC championship game for the seventh season in a row.

Chiefs HC Andy Reid crossed a milestone after Kansas City’s win over the Houston #Texans in the divisional round of the AFC playoffs.

The Kansas City Chiefs are once again in the AFC Championship game. We discuss the Chiefs trying to win three straight Super Bowls.

Reid joined the exclusive club when his Kansas City Chiefs defeated the Houston Texans in Saturday's divisional round matchup.

The Kansas City Chiefs are once again in the AFC Championship game. We discuss the Chiefs trying to win three straight Super Bowls.

With a Divisional Round win against the Houston Texans, the Kansas City Chiefs have advanced to the AFC Championship game and are hopeful for a Super Bowl three-peat.

The Chiefs will host the "Arrowhead Invitational," also known as the AFC Championship Game, for the sixth time in seven seasons on Sunday, Jan. 26.