Colorado not only lost badly at Washington on Saturday, it lost two of its best players.
Junior linebacker Douglas Rippy needs season-ending surgery after tearing ligaments in his knee in Seattle, the school reported. Senior tailback Rodney Stewart sprained his knee and will be out two to four weeks.
Rippy is the Buffaloes' leading tackler, Stewart its leading rusher and No. 2 receiver behind Paul Richardson, who is also out with an injury.
Stewart was in a longshot quest to become Colorado's all-time leading rusher before the injury, currently owning 3,217 rushing yards. His offensive coordinator Eric Bieniemy owns the school rushing mark at 3,940.
Colorado fell to 1-6 after the 52-24 loss at Washington. It plays host to No. 10 Oregon on Saturday.
Ted Miller covers the Pac-12 for ESPN.com.