Fifa is to investigate allegations Ecuador fielded an ineligible player in World Cup qualifying.
Chile filed a complaint with world football’s governing body claiming that Ecuador’s Byron Castillo is in fact Colombian, and has falsified his age.
The Football Federation of Chile (FFC) claims the 23-year-old defender used a false birth certificate and nationality to register as Ecuadorian.
If true, under Fifa rules Ecuador could have to forfeit their World Cup place.
Ecuador finished fourth in Conmebol qualifying and claimed an automatic place at the 2022 World Cup in Qatar ahead of Peru, who must play Australia or the United Arab Emirates in a play-off in June. Chile finished seventh.