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The Pac-12 does an excellent job of knocking each other out of the rankings so it's safe to say that every team in the conference will bring their 'A' game when they play the No.1 Wildcats.
Both the AP & USA Today preseason polls had three Pac-12 teams ranked in the Top 25 with Arizona at No. 5 and Oregon and UCLA in the upper third. By the time that Arizona became the No. 1 team in the country, Week 6, Colorado had also joined the Top 25.
Then came conference play.
The 12-0 Oregon Ducks, ranked in the Top 10, needed overtime to beat Utah and have lost three straight to Colorado, Cal and Stanford.
The 14-2 Colorado Buffaloes, with their only losses to ranked teams, started conference play with two wins, but almost like clockwork, they needed overtime to beat Washington State and have lost their past two games. They will most likely drop out of the rankings before returning to Tucson next week.
Next up for the Wildcats is the aforementioned Colorado Buffaloes followed by Utah at home before heading up to the northern California schools and a surprising Cal Bears team that is 13-4 and 4-0 in conference. If the Buffaloes are unsuccessful in breaking the Wildcats' streak on Thursday, this Cal team led by Justin Cobbs will be looking to play giant killer.
Which would not be a bad thing. I have seen streaks sometimes get bigger than individual games with the pressure mounting to keep it going. Nobody is hoping or wishing that Arizona loses, yet it wouldn't be the worst thing to happen.