(FILES) Paris Saint-Germain's French midfielder Lassana Diarra arrives to attend the 31th edition of the UNFP (French National Professional Football players Union) trophy ceremony, in Paris on May 28, 2023. An EU court said on October 4, some international football rules regulating player transfers are contrary to the bloc's laws, in a landmark decision that could shake up the system. The Court of Justice of the European Union (CJEU) found that some FIFA restrictions to a player's ability to seek further employment after unilaterally terminating a contract hinder the EU's free movement and competition between clubs. (Photo by Bertrand GUAY / AFP) (Photo by BERTRAND GUAY/AFP via Getty Images)

(FILES) Lassana Diarra during the French L1 football match between Caen (SMC) and Paris (PSG) on May 19, 2018, at the Michel d'Ornano stadium, in Caen, northwestern France. An EU court said on October 4, some international football rules regulating player transfers are contrary to the bloc's laws, in a landmark decision that could shake up the system. The Court of Justice of the European Union (CJEU) found that some FIFA restrictions to a player's ability to seek further employment after unilaterally terminating a contract hinder the EU's free movement and competition between clubs. (Photo by CHARLY TRIBALLEAU / AFP) (Photo by CHARLY TRIBALLEAU/AFP via Getty Images)

Belarus's Aryna Sabalenka serves to Czech Republic's Karolina Muchova during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)

Czech Republic's Karolina Muchova hits a return to Belarus's Aryna Sabalenka during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)

Belarus's Aryna Sabalenka hits a return to Czech Republic's Karolina Muchova during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)

Belarus's Aryna Sabalenka hits a return to Czech Republic's Karolina Muchova during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)

Czech Republic's Karolina Muchova hits a return to Belarus's Aryna Sabalenka during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)

Czech Republic's Karolina Muchova hits a return to Belarus's Aryna Sabalenka during their women's singles quarterfinal match at the China Open tennis tournament in Beijing on October 4, 2024. (Photo by Jade Gao / AFP) (Photo by JADE GAO/AFP via Getty Images)