Markos started his football career in 1987 at
Naoussa, where he played for five seasons before joining
Panathinaikos in 1992. He gradually established himself as a first-team player for five years, won 3
Championships, 3
Cups and 2
Super Cups, including a double in 1995 and at the same time he became an international. He a member of the team that reached the semi-finals of the
UEFA Champions League in 1996, scoring in the decisive away win against
Porto. In the summer of 1997 Markos moved to England for
Sheffield United, where he failed to compete in any game and after a few months he returned to
Greece to play for the
second division side,
Kalamata. The officials of
AEK Athens noticing that he was by no means a second-division player, decided to sign him in the summer of 1998. He was a regular in the midfield of the team and with his presence helped the club a lot for two seasons. On 10 May 2000 he won the cup, even though staying on the bench throughout the final against
Ionikos. On 27 June 2000 Markos was released from AEK and signed for
Aris, where he played for 2 seasons. In 2002 he moved to their rivals,
PAOK where he played for 3 seasons before retiring, winning yet another cup on 17 May 2003, playing the full match against his former club. ==International career==