Defending champion Olympiakos retained first place yesterday after coming from behind to defeat OFI 2-1 in Iraklion. A clumsy clearance by OFI goalkeeper Yiannis Sifakis provided the opportunity for Olympiakos’s Ecuadorian forward Felix Borja to score the winning goal four minutes from time. Borja had replaced Brazilian Rivaldo only seconds before he scored. Nigerian striker Peter Ofori-quaye, a former Olympiakos player, opened the scoring for OFI in the 28th minute. Rivaldo equalized in the 69th. Panathinaikos, which fired its Swedish coach Hans Backe on Friday, barely won 1-0 away over Panionios, thanks to a penalty shot by Dimitris Papadopoulos three minutes from time. Panathinaikos is said to be pursuing Serbia’s Dusan Bajevic to replace Backe. In other games, newly promoted Kerkyra defeated Atromitos 1-0; Larissa and Aegaleo drew 2-2; Aris beat Ionikos 1-0 to score its first victory this season and PAOK beat Ergotelis 1-0. Apollon Kalamaria also notched its first win, defeating Xanthi 2-0. AEK and Iraklis play tonight to conclude the fourth round of the Greek championship.