Sports NFLPA medical director advises players to halt group workouts due to some states’ COVID spikes June 20, 2020Chris Bumbaca, USA TODAYComments Off on NFLPA medical director advises players to halt group workouts due to some states’ COVID spikes NFLPA medical director Dr. Thom Mayer told players in a message "no players should be engaged in practicing together in private workouts."