Michigan running back Brandon Minor didn't practice Tuesday and is doubtful against Ohio State due to a shoulder injury, the Detroit Free Press reports.

With Minor hurt, Carlos Brown is sharing first-team reps with Vincent Smith, Michael Shaw and Kevin Grady.

Nic Grigsby was active for last Saturday's game against California but only saw action on the final drive of the game with the Wildcats in an obvious passing situation, the Arizona Daily Wildcat reports.

Grigsby's shoulder was still sore enough to limit his playing time. Head coach Mike Stoops expects Grigsby to play against Oregon this week, but he would not say whether or not Grigsby will be the team's starting running back.

Jacory Harris walked into the Miami football meeting room Tuesday, his hands stuffed into the front pocket of his green hooded sweatshirt.

He stood behind a lectern for 16 minutes, taking questions.

Coyly, Harris kept his hands, and whatever brace he may or may not be wearing on his throwing one, out of view, in that pocket the entire time.

"I will be playing Saturday," Harris insisted. "No problem."

California star tailback Jahvid Best will not play in the Big Game against Stanford this week as he recovers from a concussion.

Coach Jeff Tedford said Monday there is "no chance" Best would play Saturday against No. 14 Stanford. Best sustained his second concussion in an eight-day period when he fell on his back and head from about 8 feet in the air on Nov. 7 against Oregon State.

San Jose State football coach Dick Tomey will retire after the season.

The school said late Sunday that Tomey would hold a formal news conference Monday to discuss his decision. The Spartans, 1-8 after Saturday's 24-9 loss to Utah State, have struggled and their only win came against non-Football Bowl Subdivision school Cal Poly on Sept. 26.

Back on the field after the first missed game of his Georgia career, A.J. Green was working his way back into the offense when he hit the ground hard.

On his second consecutive 12-yard reception three plays into the second quarter, Green landed out of bounds and left the game with a sprain to the acromioclavicular joint in his left shoulder.

Beyond being out for the remainder of the game, there was no immediate word on how much time the sophomore will miss because of the injury.

Southern California has tumbled to its worst ranking in the AP college football poll since the Trojans began their current run of 128 consecutive weeks in the Top 25 back in 2002.

Meanwhile, Stanford soared up the poll on the strength of a dominant performance against the Trojans.

USC is No. 22, while Stanford jumped 11 places to No. 14.

Three freshmen Tennessee football players, including highly touted wide receiver recruit Nu'Keese Richardson and starting safety Janzen Jackson, were charged with attempted armed robbery Thursday morning.

Richardson, 18, and Jackson, 18, along with defensive back Mike Edwards, 18, and companion Marie Montmarquet, 22, were charged after a report of an armed robbery at a gas station in an area known as "The Strip" at the edge of Tennessee's campus.

Quarterback Zach Collaros will start for fifth-ranked Cincinnati against West Virginia on Friday night, with Tony Pike expected to play as well for the first time since he hurt his non-throwing arm.

Coach Brian Kelly announced Collaros as his starter Tuesday. The sophomore has started the last three games and kept the Bearcats undefeated. He threw for 480 yards?the second-highest total in school history?during a win over Connecticut on Saturday night.