Argentina just reminded the world why they’re defending champions. A 3-1 extra-time victory over a ten-man Switzerland on July 11, 2026, at Arrowhead Stadium in Kansas City punched their ticket to the World Cup semifinals.

Julián Álvarez and Lautaro Martínez did the heavy lifting against a Swiss side reduced to ten men. Lionel Messi contributed an assist but didn’t find the net himself, ending his streak of scoring in consecutive World Cup matches. A footnote for football historians. A bigger deal for prediction market traders who had been pricing Messi goal probabilities into their positions.

Polymarket reported significant trading volumes tied to the Argentina-Switzerland match and broader tournament…