There remains much uncertainty about exactly how and where a competition that was postponed last year due to the coronavirus pandemic will take place.
The opening match between Turkey and Italy is due to be played in Rome on June 11, while seven matches are set to go ahead at Wembley in London, including both semi-finals and the final.
The decision by European football's governing body UEFA to stage the competition for the first time all across the continent, in 12 different cities, was a logistical challenge even before international travel was restricted by the spread of Covid-19.
Elite-level football has managed to keep going thanks to rigorous testing protocols but has been played in soulless, empty stadiums with supporters still shut out in most of the countries due to host matches.