This is an article on Mahomes and his ankle. The guy claims the ankle did not bother him during the AFC championship against the Bengals. The guy obviously did not watch the game. He was frequently limping and ran the ball almost not at all.
Listening to interviews with guys who have had similar injuries, they say it hurts worse the morning after. A lot worse. Most would not be surprised if he wasn't on crutches for a day or two.