The first courtroom appearance in the nationwide case filed by thousands of current and former football players against the National Football League, claiming that the NFL is responsible for the long-term effects of concussions, is set for this morning.

U.S. District Judge Anita Brody of the Eastern District of Pennsylvania, who has been handling the multidistrict litigation case since it was consolidated in the Eastern District of Pennsylvania early last year, is set to hear the NFL’s argument that the case should be dismissed because the issue is governed by the league’s labor agreement with the players.