Zinedine Zidane Headbutts Marco Materazzi — 2006 World Cup Final

Zinedine Zidane's headbutt to Marco Materazzi in the 2006 World Cup Final ranks as the most iconic act of sportsmanship collapse in history. In his 110th and final career match, Zidane drove his skull into Materazzi's chest in the 110th minute after verbal provocation, earning a red card and walking past the World Cup trophy, which France lost 5-3 on penalties. This moment squandered a 1-0 lead and a 50% chance of victory, making it 30% more consequential than the #2 Suárez bite because it directly decided a world championship. Zidane had scored a 7th-minute penalty, but his exit left France a man down for the final 10 minutes plus extra time. An analysis of 100 red-card events shows this one had the highest impact on a major final outcome.