Not even former United States Secretary of State Henry Kissinger could end the feud between Zinedine Zidane and Inter Milan defender Marco Materazzi, it has been revealed.

The attempt was made in December 2006, just months after Zidane was famously sent off for head-butting Materazzi in the World Cup Final.

The setting for the 'peace process' was the bi-annual 'Telethon Notizie' TV show, which raises funds for people with genetic illnesses.

Gazzetta dello Sport says Kissinger along with Marcello Lippi, Massimo Moratti, Didier Deschamps, Michel Platini and Jacques Chirac tried to get Zidane and Materazzi to shake hands

However, Kissinger - a man who brokered a ceasefire in the Vietnam conflict in 1973 - could not even make it happen.

Asked about the event, Materazzi said: "I have already tried [to make peace] in every way."