Dorian Thompson-Robinson appeared as if he might be just fine when he jogged off the field after absorbing a sack. He milled about on the sideline, inspecting various body parts, before disappearing into a medical tent.
When the UCLA quarterback emerged, he provided the first clue that he might be more than a little shaken up. His route took him toward the locker room.
The trajectory of a Bruins’ season on the upswing took a turn for the worse midway through the second quarter Saturday night at the Rose Bowl.
UCLA lost its starting quarterback to what appeared to be an upper-body injury against Arizona, leading to a role reversal when Thompson-Robinson was replaced by Wilton Speight.