Career
Born in Piraeus, Glezos began playing football as a defender for the youth sides of Atromitaki and Ermis Nikaia. In 1963, he joined Proodeftiki F.C., where he would play for nine seasons. In 1972, Glezos joined Olympiacos F.C. where he played until 1978, winning three Alpha Ethniki and two Greek Football Cup titles.
He finished his career with Kallithea F.C., suffering a serious knee injury in 1979.
All told, Glezos made over 260 appearances in the Greek first and second divisions. Glezos made 10 appearances and scored one goal for the Greece national football team from 1971 to 1974.
He made his debut as a second-half substitute in a 1–0 Union of European Football Associations Euro 1972 qualifying defeat to Switzerland on 12 May 1971. Glezos died after a long battle with cancer at age 60.