The Oregon-USC rematch Pac-12 championship game has felt like a foregone conclusion for much of the 2012 calendar year. However, it's very possible both teams could lose this weekend — and that would essentially put Stanford and UCLA into the championship game. What a twist that would be in Week 12, right? Those are two of the best games of the year in the Pac-12 and are two of the marquee showdowns nationally this weekend. Sit back and enjoy.
Pac-12's Top Storylines to Watch in Week 12: