كتب : Hatem Maher
A superb free-kick by ENPPI's Ahmed Saied after 10 minutes condemned Olympic to relegation after just one season in the top flight.
The Alexandria-based club are at the bottom of the 16-team table on 23 points, seven adrift of safety with two games remaining.
ENPPI lie fourth with 48 points as they aim to secure a top-four finish to play in next season's Confederation Cup.