Southern California’s run at No. 1 in The Associated Press Top 25 reached a recordbreaking level and Oklahoma, the team USC replaced in the top spot almost two years ago, was unranked for the first time since 1999.

With the Trojans top-ranked in the AP media poll released Sunday, USC has now been No. 1 for 22 straight polls, besting the record set by Miami from 2001-2002.

USC improved to 2-0 Saturday night with a 70-17 win over Arkansas .

But holding on to No. 1 is about to get tougher over the next two weeks as USC hits the road. The Trojans play No. 24 Oregon in Eugene next week and at No. 18 Arizona State on Oct. 1.