Everyone will watch Mexico open the tournament; the shrewd will watch what happens later that night in Guadalajara. With the co-hosts favoured to win Group A, South Korea and Czechia are effectively playing for second — and in a 48-team format where the best third-placed sides also advance, even the loser isn't finished. Why Day 1's quiet game carries outsized weight.
Group A has a clear favourite in Mexico and, below them, a genuine coin-flip. South Korea, seeded and Son-led, and Czechia, back from a 20-year exile, meet on opening night knowing that whoever wins takes a commanding step toward second place — and that points dropped here are hard to recover against the hosts.
The 48-team format softens the fall. Eight of the twelve third-placed teams advance to the new round of 32, so a Day-1 defeat is a setback, not an execution — which paradoxically makes this a game both sides can play on the front foot. For Son, almost certainly at his final World Cup, and for a Czech side that waited two decades and two play-off shoot-outs to get here, caution is the enemy.
The opener is theatre. The nightcap is arithmetic — and arithmetic is what settles groups.
The night's marquee fixture is the Azteca opener, and its weight on the hosts is in opening night at the Azteca.
Sources: Yahoo Sports — World Cup schedule & groups · Sky Sports — Group A guide.