The Bills have activated WR John Brown from Injured Reserve but have placed Brown and practice squad S Josh Thomas and RB Christian Wade on the Reserve/COVID-19 list.
Per NFL contact tracing protocols, those players have been defined to have been in close contact with RB T.J. Yeldon, who was placed on the Reserve/Covid-19 yesterday.
The Bills have also elevated QB Davis Webb from the practice squad for tonight's game.