olympic football always has a chunk of uncertainty due to FIFA empowering clubs to decide whether to release their top players. this tournament can be a great leveller where traditional heavyweights can end up with weak contingents.there is also a glorious history of sowing the seeds for future champions who seize the opportunity and burst into global reckoning.the kick off is on July 21 and the final is played in tokyo on August 7. There are four groups of four teams and two teams from each progress to the knockout stage.