Arizona Cardinals wide receiver DeAndre Hopkins, New England Patriots defensive end Matthew Judon and former quarterback Derek Anderson are among the most high-profile people who have expressed their displeasure.

Anderson focused on how vaccinated players who contract the virus will not be punished while an unvaccinated player will.

“This is total bullshit @nfl. So if a vaccinated player contracts which they will, no consequences? That’s ridiculous,” Anderson wrote in his Twitter thread. “Forcing guys to get a emergency use vax that’s unproven is bullshit. Let them make their own decisions. Would retire tomorrow if I was still playing.”

In a now-deleted tweet, Hopkins, who was selected to three All-Pro teams, said the new mandate has him questioning his future in the league.

“Being put in a position to hurt my team because I don’t want to partake in the vaccine is making me question my future in the @Nfl,” Hopkins said.