Steffen was actually substituted after a clash of heads after five minutes but 'Leo' played a huge part in Norway's 3-2 win against Wales.
Robbie Savage put Wales 1-0 up but Leo went close before Ronny Johnsen levelled. Ryan Giggs, later sent off for the first time, put Wales ahead again only for Leo to set up John Carew's equaliser and Frode Johnsen to later seal Norway's 3-2 win.
Neither side can qualify for the finals but the win takes Norway off the bottom of Group Five.
Goalkeeper Neil Sullivan looks set to miss out on next summer's finals after Scotland lost 2-0 in Belgium. Scotland are now three points behind Croatia with just one game left - the Scots have to hope Croatia lose to Belgium and the beat Latvia by seven goals to reach the play-offs.
Things don't look too good for Goran Bunjevcevic either after Yugoslavia failed to beat Slovenia on Wednesday night. The draw means 'Bunje' and Yugoslavia are a point behind Slovenia with a game left - Slovenia only have to beat the Faroe Islands for second place.
Stephen Carr and Gary Doherty will be in a play-off at least with Ireland. They will now fight it out for top spot in the final round of matches after Portugal beat Cyprus 3-1. Ireland have to beat Cyprus in October and hope Portugal slip up against Estonia.
Finally, back in Group Five, Sergei Rebrov's Ukraine are still on for second place and a likely play-off against Germany after beating Armenia on Wednesday night.
They are a point ahead of Belarus with a game left but face leaders Poland in their final game. Belarus, meanwhile, take on Simon Davies' Wales.
Oyvind Leonhardsen and Steffen Iversen won the battle of World Cup pride against Spurs team-mate Simon Davies on Wednesday night.