NFL COVID-19 protocols: The league will remove all restrictions - DraftKings Network
NFL stops all Covid protocols, dropping all masks and testing requirements
NFL 2021: All the teams, sponsors and broadcasters - SportsPro
The NFL and the NFL Players Association agree to suspend COVID-19 protocols
NFL practice squads, explained: How it works, rules, eligibility, more - Pats Pulpit
NFL, players' union agree to halt COVID-19 protocols
Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
NFL's handling of concussions questioned after Tua's injury
NFL Suspends All COVID-19 Protocols for the 2022 Season
Big cities drop more COVID-19 measures in push for normalcy
NFL-NFLPA COVID-19 Protocols for the 2021 Regular Season
NFL offseason priorities for 2022 - Key dates, quarterback dominoes, potential rule changes, Rooney Rule revisions, more - ESPN