An appeals court on Friday gave the National Football League Players Association an opening to revive its $3 billion lawsuit accusing league owners of colluding to place a secret salary cap on the 2010 season. But the NFLPA and its lawyers at Winston & Strawn and Latham & Watkins still face a long road to recovering any damages.

Back in 2012, U.S. District Judge David Doty in Minneapolis ruled that the NFLPA was bound by a prior stipulation that it wouldn’t press collusion claims against league owners over the alleged pay cap. The U.S. Court of Appeals for the Eighth Circuit partially reversed that decision on Friday, ruling that the NFLPA should be given a chance to argue that the stipulation was procured through fraud and is therefore invalid.