Tyrann Mathieu out of playoff game vs. Bills with concussion
Kansas City's Tyrann Mathieu out after opening-drive collision with Buffalo's Josh Allen - The Boston Globe
Chiefs' Reid: QB Mahomes 'doing good' after concussion
Tyrann Mathieu wanted to skip national championship game - NBC Sports
Chiefs rally past Buffalo 42-36 in OT in wild playoff game
How long is Chiefs player Tyrann Mathieu ruled out for after sustaining a concussion? - AS USA
Red alert for Chiefs: Tyrann Mathieu still in concussion protocol
Chiefs rally past Buffalo 42-36 in OT in wild playoff game
Chiefs rally past Bills in OT of wild playoff game
Tyrann Mathieu is out with concussion for Chiefs vs. Bills
Patrick Mahomes says he will play vs. Bills in AFC championship on Yahoo Sports app
Chiefs-Bengals AFC title inactives: Tyrann Mathieu, Darrel Williams will play - Arrowhead Pride
Chiefs' Tyrann Mathieu Expected To Play Sunday