West Ham winger Said Benrahmi was allowed to join Lyon on loan.
At the close of the winter window, Lyon accused West Ham of "unexplained behaviour" and a lack of respect" as the London club failed to enter the data on the agreed deal into the FIFA transfer system by the deadline.
Nevertheless, FIFA entered Lyon's position and allowed the French club to sign the 28-year-old Algerian on loan with an option to buy for £15 million.
Benrahma has played for West Ham since his move from Brentford in October 2020. Said has scored 24 goals in 155 appearances for the Hammers, including a brace in the Conference League final against Fiorentina in June 2023.