[4] On 8 April 2017, Lampropoulos ruptured his anterior cruciate ligament in a Super League game against Platanias and underwent a successful surgery, while his comeback was estimated in around six months.

[5] In his day of surgery, Lampropoulos extended his contract with the Greek Cup winners by two years, despite being ruled out for six months with a knee injury.

[7] On 26 November 2018, despite the fact that he was a key figure for the club[citation needed], following the Super League defeat from Panetolikos, AEK owner Dimitris Melissanidis engaged in a heated conversation with three players, ostracizing Lampropoulos, André Simões and Anastasios Bakasetas from the team.

Last season, a similar situation developed with goalkeeper Giannis Anestis, who was subsequently ostracized from the team after refusing to extend his contract.

[12] On 9 November 2018, Greece new coach Angelos Anastasiadis called up Lampropoulos for the match against Finland and Estonia for UEFA Nations League.