Oregon star Kayvon Thibodeaux exited Saturday's game after suffering an apparent leg/ankle injury in the first quarter.
He walked off the field using his own power and went to the injury tent, per The Oregonian/OregonLive. Although he returned to the game, the edge rusher left the field minutes before halftime, and was seen in street clothes and a walking boot on the sidelines during the third quarter.
Thibodeaux tallied two tackles, including a sack, during the first half.
Fresno State leads No. 11 Oregon, 24-21, just a few minutes into the fourth quarter. The Ducks went scoreless in the third while the Bulldogs tallied eight points to secure a tie.