Michigan falls fromthe top 25

The final fallout from a disastrous opening weekend for Michigan came Tuesday, when the Wolverines dropped out of the Associated Press top 25, an unprecedented fall from No. 5 to unranked.

Since the AP poll expanded to 25 teams in 1989, no team has taken a bigger tumble in one week.

After an opening weekend filled with blowouts and highlighted by Appalachian State’s stunning 34-32 upset of Michigan at the Big House, there was little notable movement in the top 25 other than the Wolverines.

USC remained No. 1 by the media panel, but the Trojans lost support. The Trojans received 62 first-place votes in the preseason poll.

A lackluster 38-10 victory over Idaho led to the Trojans dropping to 59 first-place votes.

No. 2 Louisiana State picked up those first-place votes, receiving five.

No. 3 West Virginia received one first-place vote, the same as it did in the preseason.

Nebraska Coach Bill Callahan has been given a new, five-year contract for $1.75 million a year. It will run through Jan. 31, 2012. . . . Receiver Sammie Stroughter could return to the field for Oregon State as early as Thursday’s game at Cincinnati.

Arkansas defensive lineman Marcus Harrison returned to practice. He was suspended last month when he was arrested on drug charges. . . . Iowa offensive lineman Alex Kanellis’ career is over because of headaches that have plagued him since he had a concussion in the spring.