Russia look almost certain to miss the World Cup after the Court of Arbitration rejected a request to suspend a FIFA ban from football.
The Russian Football Union had asked to freeze the suspension while CAS investigates a full appeal against the sanction - which followed the country's invasion of Ukraine.
Russia were due to be in a play-off semi-final with Poland - who've been given a bye to the final.
The Russian Football Union (RFU) appealed to CAS but the president of the Appeals Arbitration Division denied a request to lift the ban until CAS takes a final decision.
"The challenged decision remains in force and all Russian teams and clubs continue to be suspended from participation in UEFA competitions," the CAS said in a statement.
The ruling only applies to UEFA competitions, with Russia still looking to overturn a FIFA ban that would allow them to take part in World Cup qualifying playoff matches scheduled for the end of this month.
