Sky Sports looks at those teams who have already qualified for the 2014 World Cup.
Japan failed to cement their place at the World Cup finals on Tuesday, while Australia also slipped up against Oman.
Croatia captain Darijo Srna celebrated his 100th cap by scoring in a 4-0 win over South Korea at Craven Cottage.
FIFA have banned a South Korea player for two games and warned the country's FA after he displayed a political banner.
Gabon caused upset as they held Portugal to a draw, while Didier Drogba scored as Ivory Coast triumphed in Austria.
Australia suffered a shock 2-1 defeat to Jordan in their Asian zone World Cup qualifier in Amman.
Park Chu-Young inspired South Korea to a 2-0 victory over Japan and a first-ever Olympic football medal.
Brazil's dream of a first Olympic title remains on track after a 3-0 victory over South Korea at Old Trafford.
Park Chu-young has been named in South Korea's Olympic squad despite controversy over his delayed military service.
Park Chu-young has boosted his chances of representing South Korea at this summer's London Olympics after pledging to do military service.
Kim Bo-Kyung scored twice for South Korea as they easily swept aside Lebanon in their World Cup qualifier in Goyang.
Saudi Arabia's dreams of qualifying for the 2014 World Cup are over after losing 4-2 to Australia.
South Korea have appointed Choi Kang-hee as the new head coach of the national team.
Former Sunderland boss Steve Bruce has emerged as a shock candidate for the vacant South Korea post.
Steve Bruce has leapt to the defence of Ji Dong-won after his conditioning was questioned by his international manager.
Australia have made it through to the next stage of World Cup qualifying after a narrow win against Thailand.
Australia maintained their 100 per cent record in the 2014 World Cup qualifying campaign in the Asian zone.
Australia proved too strong for Malaysia with a 5-0 victory at Canberra Stadium, while Poland drew with South Korea.
Australia had to come from behind to win their opening World Cup qualifier against Thailand.
Australia are through to face Japan in the final of the Asian Cup after beating Uzbekistan 6-0.