Washington’s low COVID-19 vaccination rate has Ron Rivera ‘beyond frustrated’ from Zac Wassink with YardBarker.com/www.yardbarker.com Per John Keim of ESPN, Washington Football Team coach Ron Rivera told reporters Tuesday that more than 50% of Washington’s players have been vaccinated against COVID-19. To compare, NFL Network’s Tom Pelissero (h/t Nick Shook) reported earlier in the day that 85% of players league-wide have received at least one vaccine shot. Rivera battled squamous cell carcinoma, a form of skin cancer, last year and is considered immunodeficient and at high risk for COVID-19. He admitted his club’s low vaccination rate has him “beyond frustrated”…