Purdy missed the 49ers' Week 12 contest versus the Green Bay Packers last Sunday with a right shoulder injury—a game San Francisco lost 38–10. The 25-year-old was limited in practice this week on Wednesday and Thursday, and was a full participant on Friday. He's officially listed as questionable for Sunday.

San Francisco 49ers quarterback Brock Purdy is expected to return to the field on Sunday against the Buffalo Bills after recovering from a shoulder

It’s not like he was throwing at game speed, but the sight of Brock Purdy throwing the ball during warmups Friday was encouraging before the 49ers left on a trip to Buffalo for a Sunday night game against the Bills.