An official announcement by the club states that Dellas offered his resignation and the club accepted it. Stelios Manolas will take over as caretaker coach.
Dellas has been the club’s manger since April 2013 and helped AEK climb back from the third tier of Greek football all the way to the Greek Superleague in just two seasons.
AEK is currently fourth in the league, trailing eight points behind leaders Olympiacos F.C. , from whom they suffered a 4-0 loss over the weekend.
The club thanked Dellas for his service.