Career
Born in Eleftherio-Kordelio, Athanasiou began playing football with Akratitos in Superleague Greece. He then moved to Crete and Gamma Ethniki side Atsalenios before signing with Superleague club Ergotelis in 2007. He stayed with the club for seven seasons, gradually earning his place in the club"s starting XI and playing as the starting goalkeeper in his final two seasons with the club
After the club informed Athanasiou of their intent to sign a top-class goalkeeper into their roster at the midst of the 2013−14 season (and signed a contract with Serbian goalkeeper Vladimir Stojković a few days later), Athanasiou decided not to renew his contract with the club and move to Cypriot club Ayia Napa.
After one season in Cyprus, he returned to his former club Ergotelis.
