Mexico vs South Korea

The most-anticipated Group A fixture is this 18 June rematch of the 2018 World Cup group-stage meeting in Rostov — won 2-1 by Mexico via a Carlos Vela penalty and Javier Hernández goal, with Son scoring a late consolation. Eight years later, Son is the only player from that match still active for South Korea, and only Edson Álvarez, Raúl Jiménez and Guillermo Ochoa remain from the Mexican side that played that night. The fixture lands in Guadalajara at altitude, with Korea coming off (presumably) a tough opener against Czechia and Mexico (presumably) cruising off a comfortable Azteca win against South Africa. The schedule asymmetry — Korea’s older squad with one fewer day’s recovery — quietly favours Mexico.

Tactically, the matchup is more even than the betting odds suggest. Mexico’s 4-3-3 with the “safety triangle” of Álvarez, Montes and Vásquez is purpose-built to defend against exactly the kind of attacks Korea will try — Son cutting in from the left, Lee Kang-in operating between the lines, Hwang Hee-chan attacking the right channel. Korea’s 4-2-3-1 likewise has a credible defensive structure against Mexico’s wide overlaps. The fulcrum of the match will be the central midfield duel: Álvarez vs the Hwang In-beom / Paik Seung-ho pairing, with Mora and Lee Kang-in floating into the resulting space. Whichever team wins more 50-50s in that central zone will probably control the tempo.

The headline battle is Son Heung-min vs César Montes. Son’s running off the shoulder of opposing centre-backs is his most devastating trait, and Montes — who has played in the relentlessly physical Russian Premier League at Lokomotiv Moscow — is exactly the kind of defender suited to handling it. The 2018 match featured Son scoring a 90+3’ consolation against a tired Mexican back line; in 2026, with Mexico playing at home and fresh, the dynamic should flip. The Jiménez vs Kim Min-jae match-up is the marquee European-based subplot: Premier League striker vs Bundesliga defender, both at the absolute apex of their international careers.

Stakes are different for each side. For Mexico, a win effectively books the group; even six points (a win plus a follow-up draw against Czechia) is extremely difficult to overturn. For Korea, a win here would be the single biggest result of the Hong Myung-bo tenure — they would essentially be assured of advancement going into the South Africa closer. A loss, on the other hand, puts Korea into must-win territory against South Africa and likely fighting for a best-third-place spot. The realistic outcome is a 2-1 Mexico win — Jiménez goal, late Son consolation — but the upset path is genuinely live, perhaps a 25% probability for Korea on neutral models.