Seattle elevated Treadwell from its practice squad to the 53-man roster Saturday ahead of Sunday's game versus Carolina, Adam Schefter of ESPN reports.
Treadwell is set to suit up for a third consecutive week, meaning the Seahawks will need to sign him to the active roster if they need him to play beyond Week 14. The 27-year-old wideout has caught his only target for one yard through two games in 2022.