About S. Giannakopoulos Stylianos "Stelios" Giannakopoulos (Greek: Στυλιανός Γιαννακόπουλος; born 12 July 1974 in Athens), popularly known as Stelios, is a Greek footballer who plays for Greek Super League side Larissa as a midfielder. Stelios is one of the most well know Greek footballers internationally, due to his successful spells with Olympiacos and Bolton Wanderers as well as his appearances with the 2004 European championship winning Greek national team.