Career
Papathanasiou was a key player for Ermis Aradippou and he was the top scorer in the second division for the last two seasons (2006-2007, 2007-2008). APOEL offered him a 2 years contract on June 2008 and he join the club On May 2009 he returned to APOEL and been part of the Champions of first division too.
He also appeared in two official group stages matches of the 2009-2010 Union of European Football Associations Champions League with APOEL. On Monday, 31 May 2010 Andreas signed a contract with Anorthosis Famagusta.
He appeared only in three 2010-2011 Union of European Football Associations Europa League matches with Anorthosis and two months later, on 2 August 2010, the team manager Guillermo Angel Hoyos decided to put the player on loan to another team So, he moved on loan for another time to Ermis Aradippou for the 2010-2011 season.
He made his official debut for the national team on the World Cup Qualifier game against Ireland on October 15, 2008.