|Men's Water polo|
|Gold||1956 Melbourne||Team competition|
The Soviet Union and Hungary water polo teams met in the semifinals at the Olympics. Because of the Soviet Union's brutal invasion of Hungary a month earlier and the resulting tension between the teams, the game was expected to be very physical. In a match marred by many penalties on both sides, Zádor scored twice as Hungary took a 4-0 lead. Late in the game, Valentin Prokopov struck Zádor in the face, opening a cut under his right eye. Zádor's injury and multiple other combats resulted in it being known as the "Blood In The Water" game. The match was stopped in the final minute to quell fighting among spectators, many of them from Melbourne's large Hungarian community, who were furious over the Russian invasion of their homeland.
Zador was shown emerging from the water with blood pouring down his face in a news photo published around the world. He later commented "All I could think about is, 'Could I play the next match?'." Zádor's injury kept him out of the Olympic final, but his team won the Olympic gold medal with a 2-1 victory over Yugoslavia.
In April 2006, a documentary called Freedom's Fury premiered, with Lucy Liu and Quentin Tarantino listed as executive producers. It depicts the Hungarian Revolution of 1956 and climaxes with the water polo battle between Hungary and the Soviet Union. The documentary follows Ervin Zádor, who is portrayed as the unwitting focal point of the politicized match. In a 2006 interview, Zádor said the Hungarian strategy was to anger the Russian team and cause them to make errors. U.S. Olympic swimmer Mark Spitz, who narrates "Freedom's Fury", was coached by Ervin Zádor.
- "Elhunyt Zádor Ervin olimpiai bajnok vízilabdázó". Retrieved April 30, 2012.
- "Elhunyt Zádor Ervin". Retrieved April 30, 2012.
- "Famed swimming coach Zador dies". Retrieved May 1, 2012.
- Simon Burnton (December 28, 2011). "50 stunning Olympic moments No7: Hungary v Soviet Union: blood in the water". The Guardian.
- Schwartz, Larry (October 28, 2006). "The day the Cold War came to the Olympics". The Age (Australia). Retrieved 2006-12-17.
- Mike Rowbottom (2006-12-02). "Ervin Zador: Blood in the water (interview)". The Independent. Retrieved 2007-12-24.
- Radio Free Europe: Hungary: New Film Revisits 1956 Water-Polo Showdown Retrieved 13 September 2006