Olympiacos have cruised to their 40th league crown after defeating rivals AEK Athens 3-0 to move 16 points clear at the summit.
Fernando Santos said his Greece side "gave everything" during their 1-0 victory against Russia, which helped the 2004 champions reach the UEFA EURO 2012 quarter-finals.
Greece suffered a blow on Saturday as it was announced central defender Avraam Papadopoulos was out of the remainder of UEFA EURO 2012 with a torn anterior cruciate ligament in his left knee.
Olympiacos shot themselves in the collective foot as two own goals prevented them narrowing the gap to Super League leaders Panathinaikos.
Arsenal's young guns failed to fire as they slipped to a slim defeat at Olympiacos in their final UEFA Champions League group encounter.