What happened: No. 2 Notre Dame lost to BYU in Provo on Saturday. College GameDay was on site for BYU's first home show in 17 years. The Big 12 has ordered a review of the end-of-game officiating.

Why it matters: The loss dents Notre Dame's path toward a College Football Playoff berth backed by analysts earlier this month. It elevates BYU as a Big 12 contender with a win over a No. 2 opponent. The officiating review leaves the finish under added scrutiny heading into the next rankings.

What to watch: Watch where both teams land in the next playoff rankings. Watch whether the Big 12's officiating review draws further action.