CORVALLIS, Ore. -- It took 41 years for a Big Ten team to again visit Oregon State.

The reception No. 13 Wisconsin received on Saturday was a smothering crush of orange, capped by a sea of fans swarming the field, and one of the biggest non-conference wins in Beavers' history.

"They played their hearts out today and I'm so proud of them," Oregon State coach Mike Riley said. "It's unbelievable. They just played like crazy to win that game."

Sean Mannion threw for 276 yards and a touchdown, Oregon State's defense smothered Wisconsin's star running back Montee Ball and the Beavers upset the Badgers 10-7.

Mannion connected with Brandin Cooks on a 20-yard touchdown on the opening drive of the second half to give the Beavers a 10-0 lead then turned it over to the Oregon State (1-0) defense that forced two turnovers and held Ball to 61 yards rushing.

More importantly, Ball had his touchdown streak snapped at 21 straight games because of the Beavers defense.

They were aggressive, blitzing from all angles and making life miserable for Wisconsin quarterback Danny O'Brien, who was sacked three times, threw one interception.

Ball's longest run was a 15-yard gain in the fourth quarter in a passing situation as the Beavers bracketed him on the outside and kept the usually nimble back from bouncing to the perimeter and open field.

"They were actually presenting what we had planned," Ball said. "We just didn't do a great job executing."

Riley didn't shy from putting some hype behind this intersectional matchup, calling it the biggest non-conference home game in school history.

Instead of folding under that pressure, the Beavers responded with a stellar defensive effort that made up for missed chances by the Oregon State offense and quickly put the memories of an underachieving 2011 season in the past.

Oregon State outgained the Badgers 354-207 and had an 11-minute advantage in time of possession.