LONDON: Brazil haven't been this close to the gold medal in football since Romario was a young promising star in the late 1980s.

Many great players have tried and failed after him, including the likes of Rivaldo, Roberto Carlos, Ronaldo and Ronaldinho.

Now it will be up to Neymar, the future of Brazilian football, to try to end decades of frustration and give the nation its first gold, the only trophy missing in football for the five-time world champions.

Brazil are the favourites going into today's final at Wembley Stadium against Mexico, a team which has had unusual success against its Latin American rival in recent years and will also be looking for its first Olympic gold.

Anything but the gold will be considered a failure for Brazil, which established the London Games as the team's priority this year and brought most of its top players for the competition.

The Olympics are also an important test for the players - most of them will also likely be in the team trying to help Brazil win next year's Confederations Cup and the 2014 World Cup at home.

Victory would give them an extra boost of morale and show fans the national team is on the right track.

Defeat could raise doubts and even cost the job of coach Mano Menezes as criticism will pour in from all across Brazil.

"We all know that we need to win the gold," Menezes said. "Brazil has to win every tournament it plays, it needs to win every match it plays, even if it's a friendly. And this time even more because it's something the nation has never won before."

Brazil is playing in an Olympic final for the first time since the 1988 Games, when the team led by Romario and Bebeto lost 2-1 to the then Soviet Union. Brazil also lost the final four years earlier in Los Angeles, and never again made it this close to victory.

The man carrying the team's expectations this time is 20-year-old Neymar, Brazil's most talked-about player in years, touted by some to potentially become the world's best player in the world.

"We came here for the gold and we are one match away from getting it," said Neymar, who has been playing up to expectations so far with three goals and several assists in the team's five victories so far. "We just have to do our job in the final."

But Brazil will be facing an opponent which has been creating problems in recent years. Mexico has won six of the last 12 matches against the Brazilians since 1999, including that year's Confederations Cup final. It lost only four of those games and drew two.

The Mexicans won the last time the teams played, a warmup for the Olympics just a few months ago in the United States. Mexico won 2-0 in a match in which both teams played with many of the players who made it to the London Games.