Mexico's 2-1 victory was built on two pillars: the individual brilliance of Santiago Giménez and the tactical intelligence of Álvaro Fidalgo, combined with a decisive set-piece intervention from substitute Luis Chávez. Ecuador were not outclassed — Moisés Caicedo was exceptional in midfield and Enner Valencia's penalty showed why he remains a world-class finisher — but the Azteca's atmosphere and Mexico's greater cutting edge in the final third proved the difference. The suspension of Edson Álvarez was a significant blow to Mexico's midfield structure, but Obed Vargas and Luis Romo covered admirably. Ecuador's defensive shape was sound for long periods, but the aerial weakness exposed at set pieces — particularly against Jiménez — ultimately cost them. Mexico will need to tighten their defensive discipline in the Round of 16, having conceded a needless penalty, but on this evidence they are a genuine threat on home soil.

• Santiago Giménez's 23rd-minute opener was his 4th goal in 5 World Cup matches — Mexico's most clinical finisher on the biggest stage.
• Moisés Caicedo completed 94% of his passes and made 8 ball recoveries — Ecuador's engine even in defeat.
• Luis Chávez's free-kick delivery for the winner was clocked at 94 km/h with 2.3 m of curl — a set-piece weapon that changed the game.
• Raúl Jiménez won 5 of 6 aerial duels, asserting physical dominance over Ecuador's PSG centre-back Willian Pacho.
• Mexico's xG of 2.1 vs Ecuador's 1.4 reflects a match where the hosts created the cleaner, more incisive chances.
• Enner Valencia's penalty was his 7th World Cup goal — cementing his status as Ecuador's greatest-ever scorer.
• The Azteca's altitude (2,240m) visibly affected Ecuador's high-press intensity in the final 20 minutes.
• Mexico kept a clean sheet in the second half after conceding from the spot — defensive resilience was key to progression.