The Facts: HC Kyle Shanahan held off making an announcement this week so he could talk directly to his players, but it would be a major surprise if Nick Mullens did not start at quarterback moving forward, sources tell NFL Network's Ian Rapoport.

Diehards Line: Mullens replaced an injured C.J. Beathard against the Raiders and had one of the best first starts in NFL history. Mullens was 16 of 22 for 262 yards with three touchdowns and no interceptions. He had a passer rating of 151.9, second only to Titans quarterback Marcus Mariota in that statistic during a debut. It was the former undrafted free agent from Southern Miss' first game action and Mullens led the Niners to their first win since Week 2.