What happened: Brock Purdy admitted to having a subpar outing while expressing optimism about Kaelon Black. The quarterback highlighted the rookie's progress despite his own struggles on the field.

Why it matters: Black is competing for a backup running back role this preseason. Earning early endorsement from the starting quarterback provides a notable boost to his roster momentum.

What to watch: Coaches will continue evaluating backfield reps throughout the remainder of the preseason schedule.