As England prepare to play Mexico at Estadio Azteca, multiple reports focus on the effects of the stadium’s high altitude on players’ breathing and performance. BBC Sport and BBC News describe how the thin air can leave people feeling as though they “can’t catch their breath,” both physically and mentally, after arriving and during play. The Independent adds context about the environment, noting that the stadium is around 7,220 feet (about 2,240 metres) above sea level and that players may need time to adjust their breathing and oxygen uptake. The reports say that reduced oxygen availability can impair physical output, potentially affecting stamina, intensity, and how quickly players recover between bursts of effort. BBC Sport also draws on firsthand experience from pundits, Rachel Corsie and Lucas Leiva, who discuss what altitude feels like for footballers. Overall, the sources converge on the idea that altitude is a significant factor for conditioning and match preparation, with players likely to experience short-term strain that can influence performance.