Ali leads tributes to the late Frazier

Frazier, who had been suffering from liver cancer, died on Monday night at the age of 67, his family confirmed in a statement.

Frazier beat Ali on points in the so-called "Fight of the Century" in 1971, but lost in two further meetings including the epic Thrilla in Manila in 1975. On Monday, Ali said: "The world has lost a great champion. I will always remember Joe with respect and admiration. My sympathy goes out to his family and loved ones."