Colorado 48, No. 19 Oregon 47: The Buffaloes scored the game's final eight points capped by a layup by Andre Roberson with 23 seconds left to snap the Ducks' 20-game home winning streak.

Oregon (18-5, 7-3 Pac-12) took a 47-40 lead with 4:29 to play on a dunk by Carlos Emory but the Ducks never scored again, losing for the third straight time.

Roberson, the nation's leading rebounder, led Colorado (15-7, 5-5) with 10 points and 13 rebounds. His game-winning basket gave the Buffaloes their first lead in the game.

Oregon, which blew its chance to reclaim a tie for first place in the conference with Arizona, was led by Emory and E.J. Singler with 14 points apiece. Singler had a dozen points at the half as the Ducks led 28-23, but he missed a contested 15-footer with a couple of seconds left that would have given Oregon the lead.

Oregon struggled offensively for the third straight game without injured point guard Dominic Artis. The Ducks entered the game averaging 74 points but haven't scored more than 54 points in their past three outings.

GAME NOTEBOOK: Oregon is 1-3 without Artis, who is sidelined with a foot injury. There is no timetable for his return. ...Oregon didn't shoot a free throw for the first 29 minutes of the game. ...Xavier Johnson, Askia Booker and Spencer Dinwiddie finished with eight points for Colorado.