What happened: Ernest Campbell hauled in a 74-yard scoring reception against Arizona State that was nullified by an illegal man downfield penalty. Tight end Charlie Williams was covered up on the line of scrimmage by an outside receiver, negating the touchdown.

Why it matters: The recurring pre-snap error erased an explosive scoring play in a tight conference matchup against the Sun Devils. Repeated alignment miscues continue to cost Colorado critical points and stall offensive momentum.

What to watch: Colorado will need to correct its receiver spacing and line alignment to prevent self-inflicted penalties from derailing drives.