A lay-off at the edge of the area from Kosta Katsouranis to Dimitrios Salpingidis hit midfielder Lukman Haruna and went into the Nigerian goal, evening their match with Greece at one just before half time.
The goal came in the 44th minute, 11 minutes after Greece went up a man with Sani Kieta's ejection. After that incident and Otto Rehhagel's substitution of forward Georgios Samaras for defender Sokratis Papastathopoulos, who was sitting on a card, Greece had pressed the Nigerian defense.
The goal came after a Katsouranis run in the right side of the box led him to lay-off a ball to the oncoming Salpingidis, whose right footed strike evened the match.
Oscar Ruiz blow the whistle on the half four minutes later, sending the teams into half drawn.