The 49ers activated Collins (shoulder) from the active/PUP list Friday after he passed a physical, Jennifer Lee Chan of NBC Sports Bay Area reports.
Collins was working through a shoulder injury during the offseason, but he's now healthy enough to participate in practices. The 2025 second-rounder played in 16 regular-season games in his rookie year, finishing with 17 tackles (four solo), including 1.0 sacks, two pass defenses, two forced fumbles and two fumble recoveries.