Amir Karic's Slovenians have qualified for next summer's World Cup in South Korea and Japan. Karic was missing as Slovenia drew 1-1 in Bucharest to go through 3-2 on aggregate. The Town player was substituted late in the first half of the first leg.
Slovenia had finished second behind Russia in their World Cup group.
Finidi George's Nigerians have already qualified while Matt Holland's Irish side play the second leg of their play-off with Iran in Tehran tomorrow.