One of the biggest sporting events - with a global audience of over 500 million (more than three times that of the Super Bowl) - the game will be seen in 200 countries.
Two English teams - but with few British players and organised by foreign managers. And one team is owned by a Russian multi-billionaire; the other by a country.
International football has become a huge business - in every country on earth. By far, the most lucrative league is our Premier League - which is under threat of hijacking.
