One hundred and four matches involving 48 competing nations, to be played in 16 venues across a continent and four time zones: the sheer scale of the men’s World Cup in Canada, the United States and Mexico, which begins on Thursday and ends on 19 July, makes it easily the biggest and longest football tournament ever staged.

Whether it will ultimately be judged the greatest in sporting terms will depend on the 1,248 players competing in gruelling conditions, ranging from the heat of Houston to the high altitude of Guadalajara. But after a lead-up marred by hubristic hype, visa rows and the eye-watering cost of buying tickets for games, for many people it will be a relief when Mexico finally kick off against South Africa in the Estadio Azteca on Thursday evening.

Fifa, world football’s governing body, likes to present its showpiece tournament as a sporting vision of global unity. But in Donald Trump’s United States, the dark shadow of geopolitical........

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