Marios Tsaousis joined from Iraklis in 2010 and immediately became the captain of the Under-15 (2014-15) team, an Under-17 league title-winner, and he was also crowned a champion with the Under-19 squad.

He is a fast and creative left-back who can operate just as well in the position of left midfielder. He wore a first team shirt in the friendly with Drama in 2016, and then was loaned to Volos and Spartak Trnava.

He is a Greek youth international with the Under-21 team.