The 49ers signed their fourth quarterback and camp arm for the summer in former Cincinnati Bengals backup Brandon Allen. Per NFL Network’s Tom Pelissero, Allen was the mentor for Joe Burrow during the previous three seasons.
One of the reasons San Francisco likely waited until after the draft was due to any free agent signing wouldn’t affect their compensatory pick formula.
Shanahan had requested an extra arm for the offseason program, so a quarterback could help shoulder the load between Trey Lance and Sam Darnold while Brock Purdy continues to rehab from UCL surgery.