Andy Reid said Patrick Mahomes was "feeling good" after the Kansas City Chiefs star suffered a concussion in Sunday's 22-17 win over the Cleveland Browns.

Mahomes was replaced by Chad Henne in the third quarter of the AFC Divisional Round game at Arrowhead Stadium on Sunday after a big hit from Browns linebacker Mack Wilson.

Amid concerns over the 2018 NFL MVP – who joined Hall of Famer Steve Young (1993-94) as the only players in NFL history to have a passing touchdown and rushing TD in three successive playoff games – Chiefs head coach Reid was upbeat about Mahomes' health.

"He's actually doing very well. I just talked to him and he's doing good," Reid told a news conference.

"We'll see how he is tomorrow, but right now he's feeling good."

Without Mahomes, Super Bowl champions the Chiefs still managed to book a meeting with the Buffalo Bills in the AFC Championship Game.

Henne produced a 13-yard run and made a short pass to Tyreek Hill on fourth-and-one to seal the Chiefs' win.

"When you're around him [Henne], you just know. I'm glad he had an opportunity to play a week or two ago, whenever our last game was, and get in," Reid said.

"I think that helped him when he jumped in this time of just being comfortable with the speed of everything. Everybody has full confidence in him."

Reid added: "We go through all of those Saturday night with the quarterbacks and those situations, fourth-and-one to win the game, what do you want? That play happened to be there.

"My coaches were on board between Mike [Kafka] and Eric [Bieniemy] and Joe [Bleymaier] upstairs, they all did a great job, with the spot, with the calls, with everything. They were spot on so it was a great job."

The Chiefs will host the AFC Championship Game for the third consecutive season. According to NFL Research, Kansas City joined the 2002-2004 Philadelphia Eagles – also coached by Reid – as the only teams to stage three straight conference championships.