The humid heat of Miami—whose stamina will collapse first?

The match is being played in Miami. In late June in Miami, temperatures exceed 30 degrees Celsius, with extremely high humidity. Playing under these weather conditions drains energy much faster than normal.

Colombia comes from South America and is relatively adapted to hot and humid weather. Portugal comes from Europe, and although they have conducted 13 training sessions in Miami to acclimate to the climate, the adaptation time is limited after all.

The most obvious stamina disadvantage is for 41-year-old Cristiano Ronaldo. Having played the full 90 minutes in two consecutive matches, and now facing a third match in humid and hot weather, can his stamina last beyond 70 minutes? If Ronaldo's stamina drops, Portugal's attacking threat will be greatly diminished.

On Colombia's side, the overall age structure is younger. James Rodríguez is 35, Díaz is 28, and Lerma is 31. Although there are also veterans, the core players' ages give them an advantage over Portugal.

In humid and hot weather, the period after 60 minutes in the second half will be the critical juncture of the match. Whose stamina collapses first may determine who concedes first. Colombia has a slight edge in stamina reserves, which could be one of the key factors in them maintaining an unbeaten record.

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