AEK escaped with a 1-1 draw at Panathinaikos thanks to Marko Livaja's equaliser in the fifth minute of stoppage-time time in the Greek Super League.
AEK are top of the league, one point ahead of Atromitos and Olympiacos.
Defending champions Olympiacos beat Levadiakos 2-1 the previous day while Atromitos travel to fourth-place PAOK on Monday evening (Tuesday morning AEDT).
Rodrigo Moledo put Panathinaikos ahead with a header in the 10th minute.
Twenty minutes later, he clashed with an opponent and had to leave the game, requiring several stitches above his left eye.
AEK coach Manolo Jimenez saw red in the 83rd minute for invading the pitch.
Elsewhere, Xanthi beat Panionios 2-0, Asteras won 3-0 at Platanias and Giannena and Panetolikos drew 1-1.