NFL referees are crying foul over the league's suspensions of two officials after Week 4 games.

Referee Adrian Hill received a one-game suspension for unprofessional conduct, CBS News reported.

Line judge Jeff Seeman faced separate disciplinary action for another player incident.

One incident involved Minnesota Vikings player Eric Wilson during the Vikings-Dolphins game.

The NFL Referees Association has formally moved to challenge the suspensions.

The union says the penalties lack proper justification and calls the discipline overly harsh.

The league says strict conduct standards are essential to the sport's integrity.

The grievance process could set precedents for how officials are disciplined in the future.

Read the full article on the NFL referees' challenge to the suspensions.