The English Premier League was established in 1992 to do exactly what it is now doing.
Arsenal's Armenian star will not travel to Baku in Azerbaijan for the clash with Chelsea – and nor will many of the clubs' fans.
The price of greater accuracy might be to damage fans' enjoyment.
Celtic and St Etienne are both in the dock with UEFA over fans waving Palestinian flags at Israeli teams.
Four football managers who made it to the top of their game with talent, and just a little charisma.