(Reuters) - Nigeria beat Bosnia 1-0 on Saturday to record its first World Cup finals victory since 1998 and condemn the European team to an early exit in its first tournament appearance.

Peter Odemwingie's 29th-minute goal lifted the African champions to four points from two games, two fewer than Argentina, which they meet in their final Group F match Wednesday, with the top spot at stake.

"It's been 16 years and no wins for our country, so we are very excited," Odemwingie said in a television interview.

"We needed the win. They have some fantastic players, so we are happy to bounce back after what our people thought was a poor performance in the first game [a 0-0 draw with Iran].

"Victories affect people in different ways, so we are looking up now, and if we get into the second round, anything can happen. Maybe we will be inspired as we were in the last African Nations Cup."

Iran is third in the standings, with one point, and could reach the last 16 with a win over Bosnia (which would be that team's third defeat in a row) in the final group match and a Nigeria loss to Argentina.

Nigeria took the lead when Odemwingie fed Emmanuel Emenike on the right wing and raced into the box to receive the striker's low return before sweeping the ball under goalkeeper Asmir Begovic.

The Bosnian bench angrily protested that Emenike had fouled captain Emir Spahic as he bundled past him into the box before making his cross.

The tournament newcomers had earlier been denied a goal after a poor offside decision against striker Edin Dzeko after he ran on to a through pass and beat goalkeeper Vincent Enyeama in the 21st minute.

"I did not see the situation; I was told there was no offside, but this was not the first or last refereeing mistake," Bosnia coach Safet Susic told reporters.

"I don't want to discuss that right now. We lost to a good team who played much better in this match than against Iran," he added.

"They scored that goal, and they won deservedly. I can only congratulate them, and I have nothing further to add."

OFF-TARGET

Dzeko had another shot saved by Enyeama, but he was well off-target with chances later in the half as he fought a lonely battle against the Nigeria defense.

The more experienced Nigerians, playing in their fifth World Cup, created several chances in the first half but were let down by the final pass, poor control or wayward shooting and a couple of smart diving saves by Begovic.

The Bosnia keeper, a teammate of Odemwingie's at Premier League club Stoke City, made a string of saves, denying Emenike and midfielder Ogenyi Onazi to keep his side in the match in a second half of end-to-end excitement.

Dzeko nearly stole an equalizer for Bosnia, his shot in a goalmouth melee hitting Enyeama's legs and coming back into play off the post deep into stoppage time.

Nigeria coach Stephen Keshi was rewarded for his adventurous tactics, while Susic packed his midfield, as he had done in the 2-1 defeat to Argentina, and only sent on second striker Vedad Ibisevic, whose best headed effort went over the bar, for the last half hour.

Just before the Nigerian goal, Enyeama had parried a shot from midfielder Miralem Pjanic, and the ball rebounded into the middle of the box, but no Bosnian player was following up to take advantage.