Trevor DeGroot, Twitter: @TrevorDeGrootBy Trevor DeGroot

It was upset weekend in college football, starting early on Thursday with Arizona going into Eugene and defeating the #2 Oregon Ducks 31-24.

Ten more ranked teams would bite the dust on Saturday, including four more in the Top 10: #3 Alabama, #4 Oklahoma, #6 Texas A&M, and #8 UCLA.

With only a few undefeated teams remaining, the possibility of a one-loss team getting into the 4-team College Football Playoff is becoming more likely. Which of the teams that lost this week has the best chance to win the National Championship? Take our poll below.