The Court of Arbitration for Sport, CAS, has granted an appeal by the Chilean football federation against FIFA’s decision to allow Ecuador to play at the World Cup despite allegations they fielded an ineligible player, it said on Friday.

World governing body FIFA dismissed an appeal earlier this month in the case of Ecuadorean player Byron Castillo, who Chile alleged was ineligible to play in qualifying since he was born in Colombia.

Castillo played in eight of Ecuador’s qualifying games — including twice against Chile — for the 2022 World Cup in Qatar as they took fourth place, while Chile finished seventh. Ecuador have denied that the player was ineligible.

A decision is expected by November 10, days before the World Cup kicks off on November 20 with Ecuador scheduled to take on hosts Qatar.