Posted by ESPN.com's Tim Griffin
Colorado tailback Darrell Scott could miss up to three games after he underwent an arthroscopic procedure for an injured knee.
Colorado coach Dan Hawkins told reporters the surgery would help alleviate an injury that occurred during the Buffaloes' Sept. 11 loss at Toledo.
"They're just going to clean up some stuff; they're not taking anything out," Hawkins said.
Scott produced 85 first-half rushing yards in the Toledo game, but has rushed only nine times for 10 yards since then. He also missed the Buffaloes' victory over Wyoming.
The injury continues the streak of bad luck that seemingly has dogged Scott since his arrival at school. He was one of the nation's top backs when he chose Colorado over Texas in the 2008 recruiting class, but missed much of last season while struggling to remain in playing shape after an injury during training camp.
With Scott's injury earlier this season, Rodney Stewart has taken over the role as the Buffaloes' featured rusher. Scott has averaged nearly 27 yards per return this season to rank second in the Big 12. Colorado's return unit that ranks 27th nationally.
Brian Lockridge will take over the role as the Buffaloes' prime kick returner.
Stewart, Lockridge and Demetrius Sumler will fill the primary roles at running back in Scott's absence when the Buffaloes host Kansas State on Saturday.