Arkansas says star quarterback Ryan Mallett suffered a concussion during the Razorbacks' loss at Auburn.
The university released a two-sentence statement from team athletic trainer Matt Summers on Sunday confirming Mallett's injury. The statement says that Mallett's "symptoms are improving" and that "we will continue to evaluate him."
Mallett left the game Saturday in the first half after taking a blow to the head. Tyler Wilson replaced him at quarterback.
Brewster, a former assistant at North Carolina, was 15-30 at Minnesota, including 6-21 in the Big Ten.
No.3 Boise State 48, San Jose State 0: Titus Young ran for a score and caught a pass for another touchdown to help visiting Boise State post a lopsided win over San Jose State (1-6, 0-2).
Kellen Moore completed 14 of 16 passes for 231 yards and two touchdowns before putting on a headset to signal plays in the second half for the Broncos (6-0, 2-0 WAC).
No.8 Alabama 23, Mississippi 10: Trent Richardson took a screen pass 85 yards for a touchdown in the third quarter, and host Alabama (6-1, 3-1 SEC) rebounded from a loss to South Carolina with a win over Mississippi.
The Rebels (3-3, 1-2) came in averaging 37 points and had scored 97 in their previous two games. Their waning comeback hopes ended with Mark Barron's interception in the final 5 minutes. Marcell Dareus tipped the ball at the line and then DeQuan Menzie batted the ball into the air before Barron caught it.
No.11 Utah 30, Wyoming 6: Jordan Wynn passed for 230 yards and two touchdowns, Matt Asiata ran for 109 yards and visiting Utah (6-0, 3-0 Mountain West) remained unbeaten by defeating Wyoming (2-5, 0-3).
The Utes were held below their 49-point scoring average mostly due to three interceptions thrown by Wynn, including two in the end zone. But they still had no problem with Wyoming.
No.17 Arizona 24, Washington State 7: Keola Antolin ran for two touchdowns, and visiting Arizona overcame the loss of quarterback Nick Foles by leaning on its little-used ground game to beat Washington State (1-6, 0-4 Pac-10).
Matt Scott relieved Foles and threw for 139 yards as Arizona (5-1, 2-1) rebounded from its loss to Oregon State last weekend to remain in the conference title hunt.
Hawaii 27, No.19 Nevada 21: Bryant Moniz threw three touchdowns, Mana Silva intercepted a late pass, and host Hawaii held on to upset Nevada (6-1, 1-1), spoiling the Wolf Pack's perfect season.
The surging Warriors (5-2, 3-0 Western Athletic Conference) have won four straight.
Washington 35, No. 24 Oregon State 34 (2OT): Jake Locker threw a career-high five touchdown passes for Washington (3-3, 2-1 Pac-10), including two in overtime to Jermaine Kearse, and visiting Oregon State's (3-3, 2-1) 2-point conversion attempt in the second overtime fell incomplete.