Mustapha, a rookie with explosive athleticism, is flagged for potential early impact as SF’s young DL group develops. His performance could translate into opportunistic tackles and flashes of playmaking in the run game and pass rush.

Mustapha, SF’s safety, is recovering from an ACL injury and re-enters a defense that needs playmaking to support a thin offense. His return timing will influence SF’s overall team health and how aggressively the defense can help offset offensive absences.

Mustapha, a safety/defender, is in ACL rehab with a Week 6 target; his return would add youth and speed to SF’s secondary depth and offer potential crossover value if utilized in run support packages or as a depth option near Aiyuk in a midseason revival.

Malik Mustapha's recovery from his ACL injury leaves the 49ers in a tight spot, especially after Odum's release. The team needs players to fill his expected roles.

Malik Mustapha's placement on the PUP list indicates a setback for his development within the team.