Anastasios "Tasos" Sidiropoulos (Greek: ÃÂýñÃÂÃÂìÃÂùÿà"äìÃÂÿÃÂ" ãùô÷ÃÂÃÂÃÂÿàûÿÃÂ; born 9 August 1979) is a Greek football referee. He referees at UEFA Europa League from the 2013âÂÂ14 season.