Altitude: how does it affect players and how big is England’s disadvantage?

The Azteca Stadium, where Mexico will host England in the last 16, is a formidable venue, given its altitude and the vociferous home support. Photograph: Henry Romero/Reuters

England have made it into the last 16 of the World Cup, and will face Mexico on Sunday (1am Monday BST). But they will also be up against another opponent: altitude.

We take a look at how playing in the Estadio Azteca in Mexico City, 2,240m above sea level, might affect their performance.