The Kansas City Chiefs are preparing as though Patrick Mahomes will play against the Cincinnati Bengals in the AFC Championship Game.

Andy Reid said the Chiefs aren't certain whether they will be able to go with Mahomes or have to use veteran Chad Henne at quarterback on Sunday.

"He's worked hard in the treatment and is doing OK," Reid said of Mahomes, who suffered a high ankle sprain in Saturday's win over the Jacksonville Jaguars.

"He mentioned it to you that he's going to play. That's his mindset, and then we'll just take it day by day and see how he does."