A day after San Francisco 49ers wide receiver Kendrick Bourne tested positive for COVID-19, the NFL and NFLPA are now investigating both the team and the player for possible protocol violations.
It is standard procedure for the NFL to look into all positive coronavirus tests; however, a league source told ESPN's Adam Schefter that they were also investigating whether Bourne was wearing his face covering properly and frequently enough.
NFL Network's Ian Rapoport reported that Bourne's test came back negative on Thursday, and highlighted that testing positive one day and negative the next has happened many times before in the NFL.