Dunga's future as coach of Brazil is hanging in the balance after a crushing 3-0 defeat to Argentina in Tuesday's Olympic Games semifinal.

The feisty former World Cup captain arrived in Beijing under a cloud following a run of poor results with the senior team and will leave under an even darker one, whether or not his side beat Belgium in Friday's bronze medal match in Shanghai.

It was widely felt that Dunga could have been biting off more than he could chew when he volunteered to lead Brazil at the Olympics, an under-23 competition with three over-age players allowed per team.