Non-conference play is largely complete for the 2013 season, and members of the Pac-12 embark on conference play after a highly successful, 29-4 run.
Despite impressive records almost across the board, pretenders are soon to be exposed against the league's upper echelon, some starting in Week 5.
Five undefeated teams are in conference competition Saturday, and at least one is guaranteed to fall from those ranks in the marquee pairing of Arizona and Washington.
The weekend's other premier matchup pits Arizona State against USC in the slate's one true must-win game. Both the Sun Devils and Trojans opened Pac-12 play in a 0-1 hole. Another loss proves particularly difficult to climb back into Rose Bowl contention.
Record This Season: 32-3 (Against The Spread: 21-14)
Last Week: 7-0 (Against The Spread: 4-3)
All lines courtesy VegasInsider.com