Brock Purdy Still Iffy For Week 13

49ers QB Brock Purdy (shoulder) remains uncertain for Sunday night's game vs. the Bills, according to NFL Network's Ian Rapoport. Purdy was "very limited" in Wednesday's practice, Rapoport adds. "Probably needs to improve just a little bit to be able to get on the field" against the Bills. QB Brandon Allen mustered just 199 passing yards and one TD on 6.9 yards per attempt last week and would be a big downgrade for San Francisco's offense if he starts again.