The NFL filed a grievance in August against the NFL Players Association over the union's annual team report cards , which the league said violate the collective bargaining agreement. In documents obtained by CBS Sports' Jonathan Jones , the NFL alleged that the report cards also violate the league's constitution and bylaws, which prohibit players from "publicly criticizing any member club or its management, personnel, employees or coaches."

Each year, the NFLPA surveys players on numerous aspects of their working conditions and assigns grades to each franchise on those categories. Teams also receive an overall grade and are ranked from 1-32. Categories on the report cards include team ownership, head coach, various facility-related subjects and treatment of families.

That the NFLPA

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