Muhammad Ali has died at the age of 74, his family have confirmed.
Ali had been admitted to hospital on Thursday evening with respiratory problems though this was initially described as a precaution.
He was placed on life support on and his family confirmed that he died late on Friday evening in hospital in Phoenix, Arizona.
Diagnosed with Parkinson's Disease in 1984 at the age of 42, Ali has become increasingly frail in recent years but still retained the charisma and charm that made him one of the most recognisable global figures of the 20th century.
George Foreman, who Ali beat at the Rumble in the Jungle in Zaire in 1974, led the tributes to the man simply known as The Greatest.
Ali, Fraser and Foreman we were one guy. A part of me slipped away.”
“Muhammad Ali was one of the greatest human beings I have ever met. No doubt he was one of the best people to have lived in this day and age.”
