The Mexico national football team remains undefeated in nine World Cup matches played at the Estadio Azteca.
Ecuador is uniquely prepared for high-altitude play, having frequently competed at elevations over 9,000 feet in Quito.
Mexico has achieved a remarkable 15-game streak without conceding a first-half goal in World Cup history.
Coach Sebastián Beccacece has prioritized team confidence over specific altitude training sessions ahead of the decisive clash.