Ernesto Valverde's team pick up their first points of the group stages, punishing a feeble showing by the Germans who sink to the bottom of the standings
Olympiakos secured a deserved 3-1 win over Borussia Dortmund in their Champions League Group F match inside a deafening Karaiskakis Stadium.
Jose Holebas, Rafik Djebbour and Francois Modesto scored the decisive goals for the hosts, taking full advantage of a poor display from the defending Bundesliga champions, who could only muster a Robert Lewandowski effort in reply.
Jurgen Klopp’s men started brightly, and could have taken the lead in the opening minutes, Shinji Kagawa twice going close either side of an Ivan Perisic effort which stung the palms of Franco Costanzo in the hosts’ goal.
However, Olympiakos survived the initial onslaught, and shocked the visitors with a sucker-punch in the eighth minute. Holebas found himself with an inch of space in the area and rose highest to nod home Ivan Marcano’s inviting ball in from the left.
The tempo of the game died down shortly after, with Olympiakos happy to sit back and play on the counter. They had a chance to double their advantage on 20 minutes, but Kevin Mirallas sent a near-post header over the bar after a good feed by Djebbour.
Dortmund were frustrated and lacking the intensity of the opening exchanges, but still managed to find themselves an equaliser in the 26th minute. Mario Gotze fed Lewandowski on the edge of the area, and the Polish frontman hit a clean strike low into the bottom corner.
The hosts were not daunted by the setback, though, and should have restored their lead 10 minutes later, but Mirallas was again found wanting, poking the ball over the bar from an unmarked position after another great setup by Djebbour.
That pair combined again three minutes later, and this time they made Dortmund pay for their lacklustre defending. Mirallas fed Djebbour just inside the Dortmund penalty box and with Mats Hummels losing his footing, the Algerian international took the ball past the static Neven Subotic and finished into the corner.
The Germans continued to defend shakily in the second half, and left Modesto completely unmarked on a set-piece opportunity on the hour mark, but the Frenchman disappointingly placed his header within Roman Weidenfeller’s grasp. Moments later, Mirallas miscued on a glorious cutback by Djebbour following a brisk counter-attack.
Dortmund were toothless in attack, and Modesto sealed the points for Olympiakos 12 minutes from the end when he flicked Ariel Ibagaza’s free-kick home. The rest of the match was played out with consummate ease, with the home fans enjoying their team's comfortable victory.
Olympiakos move into third place with three points, while Dortmund sink to the bottom of the standings with a solitary point, and are still searching for their first win. Both sides will square off once again in a fortnight’s time at the Signal Iduna Park in the fourth round of group fixtures.