FIFPRO's chief medical officer, Professor Vincent Gouttebarge, told The Times: "Only giving players 15 minutes is not enough at these temperatures - you cannot ingest enough in such a short time. If we anticipate the biggest tournament on earth next year and in Mexico as well there are some venues where games played during the afternoon are likely to be very extreme for health and performance of the players. We are anticipating that there are going to be more problems for the coming years in the 2030 World Cup in Spain and Portugal, perhaps even worse."
The union's director of global policy, Alexander Bielefeld, added: "What we have seen in the Club World Cup has to be a wake-up call for FIFA. It’s clear that certain areas in the USA, especially in Florida, where there is a higher risk and a need to avoid midday kick-offs - so games scheduled in these cities should be moved to a later time. The health and safety of players must take priority over commercial interests, including the broadcasters."