This legal battle has been brewing for years, but the tipping point was the European Court of Justice (CJEU) ruling on the case of Diarra. The French midfielder had a long-running dispute with Lokomotiv Moscow, which led to a hefty €10.5 million (£9m/$12m) fine and him being prevented from joining a new club after he terminated his contract. Diarra challenged FIFA's Regulations on the Status and Transfer of Players (RSTP), arguing they unlawfully restricted the "free movement of workers" within the European Union. The court agreed, stating that the rules created "unforeseeable and potentially very high financial risks" for players, giving them little power to negotiate or leave clubs under difficult circumstances.
While the 1995 Bosman ruling freed players to move on a free transfer at the end of their contracts, the Diarra case targets a different aspect of player rights: the ability to terminate a contract prematurely. The ruling provides a crucial legal foundation for the new class action, suggesting that FIFA's rules went too far in protecting clubs at the expense of player freedom. Player unions like FIFPro, which supported Diarra, have long argued that these rules stifled player mobility and suppressed wages, particularly for those in the lower divisions.