Byron Marshall embodies Oregon's "Next Man In" philosophy.
Called upon to take over last weekend against California when De'Anthony Thomas left after the opening kickoff with an ankle injury, Marshall ran for a career-best 130 yards and two touchdowns. He'll be tapped again this Saturday when the No. 2 Ducks (4-0, 1-0) visit Colorado.
Thomas is most likely to sit out against the Buffaloes because of the right ankle sprain he sustained in the 55-16 victory over the Golden Bears. The dynamic running back returned the kickoff 27 yards but slipped on the turf that was slick from a driving rain.
Thomas has been wearing a boot and running backs coach Gary Campbell told reporters earlier this week that the speedy junior's return was "not going to happen" against the Buffaloes (2-1, 0-1).