~snip~
It will be very influential, the weather is a problem for some players who are not used to their weather. Of course it will take time to adapt to the new weather.
Given that the FIFA World Cup 2022 will be held in Qatar, the weather will certainly be hotter, as Conditions The highest daily temperature rises 5°C, from 35°C to 40°C, rarely falling below 31°C or exceeding 44°C.
Players who are in a fairly cold climate will be a little hot. It is a challenge for the team shirt manufacturers to be able to reduce the heat, so they can't adapt well.
But it's not just about the shirts and how to adapt, it's also up to the field manager to make the field cooler or to be able to adjust field conditions that are suitable for all players.
Lots of European countries are now getting massive heatwaves, so I think they're going to be fine.
Here are some examples:
France has its hottest day EVER thanks to killer 45.8C Saharan heat bubble
UK weather forecast: Hotter than the Sahara as country set for blistering 34C temperatures
A third of the world could live in places as hot as the Sahara desert by 2070, WEF warns