Bayern Munich, Galatasaray and AEK Athens have been fined for crowd disturbances in recent Champions League and Europa League games, European soccer's governing body UEFA said on Friday.
De Zerbi said he was proud of his team's performance regardless of the result.
AEK Athens presented Al Ahly an offer to buy right-back, Mohamed Hany, in the next transfer window.
The club were also stripped of three points, ending their title chances.
Greece indefinitely suspended its superleague fixtures on Monday after a chaotic interruption of a high profile game between PAOK Salonika and AEK Athens.
AC Milan`s draw against AEK Athens in the UEFA Europa League, although on paper is not a bad result, did not leave the Rossoneri fans happy.
AEK Athens and Panathinaikos won 1-0 in the penultimate round of the Greek league playoffs on Sunday.