Some of the NFL's biggest stars have taken to social media to voice their concerns over the league's lack of preparedness amidst going into the 2020 NFL season. Some of the areas that players have pointed out need clarity include: what the protections there are for players who opt out for health reasons, what the infectious disease emergency response is, how often players and staff will be tested, how many preseason games will be played and what the acclimation period will be.