Argentina vs Brazil, Olympic Semi-Final

Argentina and Brazil, like Barcelona and Real Madrid, like Celtic and Rangers, like AC and Inter... every football fan worldwide has chosen their side of the fence... and that is why this big game appeals that little bit more to everyone. Do not let the fact that this is only a glorified friendly tournament overshadow a meeting between these two great nations... and do not expect it to be a tactical stalemate.

Recent encounters have proven to be fruitful for the boys from Brazil, winning the Copa America and the Confederations Cup 3-0 and 4-0. Both of these impressive victories sent shockwaves around the world, and almost certainly saved Brazil Coach Dunga from getting the sack. Now the Olympic Gold is up for grabs, an achievement the Brazilian team has never reached, yet the Argentinian team has won twice.

This South American head-to-head could not be much closer, out of 93 matches there have been 24 draws, 34 Argentina victories and 35 Brazil victories. However, Argentina are favourites to win tomorrow and claim their third Olympic Gold.

Lio Messi has completely justified his desire to play in the Olympics, carrying this young Argentina team to the Semi-Finals creating and scoring throughout. His performances have been top draw, and Barcelona will be happy to have him return already in top form (they'll need him to be to finish ahead of Real Madrid).

Brazil have been less impressive, but they're still Brazil... you just don't bet against them (Robinho pictured).

You can watch this match at 2pm today with the BBC Olympics coverage via the Red Button, or online at www.bbc.co.uk/sport. The lesser Semi-Final is on from 11am, Nigeria vs Belgium.