Allen has been mostly a backup since being drafted by Jacksonville in 2016. Allen last started a game in Week 18 of the 2021 season for Cincinnati and has thrown just three passes the last three seasons — including none since joining San Francisco in 2023.
Allen said his preparation hadn’t changed this week, with the exception of getting to work with the first-team receivers instead of running the scout team.
“It’s an opportunity,” he said. “The circumstances are what they are. But I think our team all year long we’ve been kind of dealing with injuries here and there. It’s been a big next-man-up mentality. It’s definitely an opportunity for me to go out and play well and put our guys in a good position to win the game. Obviously, we want Brock back and healthy and all that. But for the time being, it is an opportunity for me.”
Joshua Dobbs will be the backup Sunday.
San Francisco also will be without starting cornerback Charvarius Ward, who returned to the team this week following the death of his 1-year-old daughter on Oct. 28 but needs more time to get back up to speed. Punt returner Jacob Cowing (concussion), linebacker Tatum Bethune (knee) and defensive lineman Kevin Givens (groin) are also out.
The Packers will also be without two key defensive players, with cornerback Jaire Alexander ruled out after leaving last week’s game with a knee injury and linebacker Edgerrin Cooper out with an injured hamstring.