The AFC playoff race hinges on THESE 7 X-factors + Colts sign 44-year-old Philip Rivers?? Nate Tice & Matt Harmon break down the biggest potential X-factors that could define the AFC playoff race. Content Original Link: https://sports.yahoo.com/nfl/article/the-afc-playoff-race-hinges-on-these-7-x-factors--colts-sign-44-year-old-philip-rivers-204804864.html