The FIFA Club World Cup semi-final between England's Chelsea and Brazil's Fluminense is set to take place today, July 8, 2025, at MetLife Stadium in East Rutherford, New Jersey, just outside of New York City. The match is scheduled for 3:00 pm local time (19:00 GMT). However, the game will be played in searing heat, with temperatures expected to reach 93 degrees Fahrenheit (34 degrees Celsius), and high humidity is expected to make it feel even hotter.

The combination of high temperature and humidity presents a significant challenge for the players. Playing in hot weather increases the risk of heat-related illnesses such as dehydration, heat exhaustion, and heat stroke. These conditions can lead to increased heart rate, reduced endurance, impaired decision-making, and decreased sprint performance. To mitigate these risks, FIFA typically mandates cooling breaks during both halves of a match if the wet-bulb globe temperature (WBGT) exceeds 32°C (89.6°F).

Recognizing the potential impact of the heat, Chelsea's coach, Enzo Maresca, has stated that the team will adapt and try to win, while downplaying concerns. Strategies to combat the heat include adequate acclimatization, in-match cooling breaks, and effective rehydration plans. Teams may also adjust their game strategy to reduce high-intensity activity and distance covered by players. Cooling techniques such as partial or whole-body cold water immersion during halftime and the application of ice towels can also help to lower body temperature. Players are also advised to wear lightweight, breathable clothing and monitor their bodies for signals of heat stress.

Fluminense will be without Juan Pablo Freytes and Matheus Martinelli due to suspension. Key defender Rene returns from suspension and is expected to start. Jhon Arias is expected to lead Fluminense's attack. Thiago Silva, Fluminense's defender, is preparing to face his former club, Chelsea.

Chelsea will be without Levi Colwill and Liam Delap due to suspension, and Romeo Lavia due to fitness issues. Cole Palmer will be a key player for Chelsea, likely playing in a central attacking midfield role.

The winner of this match will face either Real Madrid or Paris Saint-Germain in the final.