Can I sue my company because they infringe on my rights by not letting me work from home?
The only way the NFL could infringe on their rights is if they enforced rules and refused to allow the players to quit.
Only governments and kidnappers can infringe your rights.
They work under a contract. I don’t if it does or not, but it’s conceivable that the rule somehow violates their contract. That’s their dispute. “...is inconsistent with the collective bargaining agreement...”