8e844b23_ration_necessary_for_fair_play__regarding_professional_sports_4
[0] Mackey v. National Football League [1] 1976 [2] The legality of the “Rozelle Rule,” a football policy designed to restrict free agency [3] A policy requiring a team to give up players if it signs a free agent from another team was challenged as an illegal restraint on trade. [4] 
A district court ruled the “Rozelle Rule” illegal, supporting free agency in football and other professional sports. Courts proved willing to support players’ challenges to sport cartels’ powers.
League cooperation necessary for fair play
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