Nothing shakes up the college football rankings like the No. 1 team in the country losing. And when the top-ranked team falls to another team high up in the rankings -- such as Texas falling to Georgia on Saturday night -- it's going to lead to all kinds of changes to the new AP Top 25 poll.

There's a new No. 1 in the college football NCAA Re-Rank 1-134 this week after Texas was beaten by Georgia. But it's not the Bulldogs on top.

The Oregon Ducks moved into the No. 1 ranking in the new Associated Press poll Sunday. Fellow Big Ten and SEC teams occupy the other four slots after Georgia upset Texas on Saturday.