What are the most controversial moments in World Cup history?

During the 2006 FIFA World Cup final, France captain Zinedine Zidane headbutted Italy's Marco Materazzi in his farewell match. Uruguay's Luis Suárez bit Italian Giorgio Chiellini in a 2014 World Cup match and was banned for nine international matches. Maradona scored a goal using his hand against England in the 1986 World Cup quarter-final, which was called 'Hand of God'.