- NFL, NFLPA agree to updated COVID-19 protocols for training camp, preseason NFL.com
- Unvaccinated NFL players will have a much, much more difficult season under new rules SB Nation
- Restrictions remain in place for unvaccinated players, loosened for vaccinated players NBC Sports
- NFL preseason COVID-19 restrictions to remain severe for unvaccinated, nearly all lifted for fully vaccinated ESPN
- Unvaccinated NFL players will have a much tougher time in 2021 Touchdown Wire
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