Sean Mannion threw for 276 yards and a touchdown, Oregon State's defense smothered Wisconsin's Montee Ball and the Beavers upset the No. 13 Badgers 10-7 on Saturday.
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.
The win snapped Wisconsin's 33-game non-conference winning streak, the second-longest in the country behind LSU.
Wisconsin finished with 207 yards and only 35 on the ground. It was the lowest total yardage for Wisconsin in five years. The previous non-conference loss for Wisconsin (1-1) came early in the 2003 season when the Badgers lost to UNLV.
Wisconsin wide receiver Jared Abbrederis left the No. 13 Badgers' loss to Oregon State on Saturday with a chest injury following a big hit.
Abbrederis was hurt in the second quarter of the 10-7 loss to the Beavers. He was injured when he got sandwiched by Oregon State's Rueben Robinson and Feti Taumoepeau on a crossing route. Abbrederis initially got up and started to jog off the field, but took a few steps and went down to the turf. He was taken back to the locker room and about 20 minutes later walked under his own power to an ambulance.
Abbrederis was transferred to a hospital for evaluation. Coach Bret Bielema didn't have details on his injury after the game, but said Abbrederis was expected to accompany the team on its flight back to Wisconsin.
Abbrederis had one catch for 26 yards in the first half. He had two touchdown catches last week against Northern Iowa.