Former boxer Sir Henry Cooper has died, aged 76.
Sir Henry, who was knighted in 2000, is best remembered for two famous clashes with Muhammad Ali in the 1960s.
He floored Ali in the fourth round with 'Enry's Ammer' - his trademark left hook - but Ali eventually won the 1963 non-title fight at Wembley.
Ali triumphed again when they boxed three years later but Cooper remained a favourite with the British public.
Sports journalist Colin Hart, a friend of Sir Henry, told Sky News: "I'm not shocked he died, sadly, because I saw him deteriorate over the years as he got quite ill. He wasn't the same after the death of his wife (Albina). He died of a broken heart."
David Haye, the current WBA World Champion, wrote on Twitter: "One of Britain's greatest sports man Sir Henry Cooper passed away today. A true warrior and great human being. Rest in Peace."
Robert Smith, the general secretary of the British Boxing Board of Control, described Sir Henry as "one of the sporting icons, not just for the boxing public but sport in general".
Speaking to Sky Sports News, Mr Smith continued: "He fought Muhammad Ali twice, once when he was Cassius Clay and once when he was Muhammad Ali, and he put up wonderful performances."
On the affection in which Cooper was held, he added: "It's not just the boxing and your ability, it's the personality as well.
"He won the BBC Sports Personality of the Year on two occasions, which is a tremendous feat for a boxer. Everyone called him 'Our Enry', and he was much loved, he served boxing wonderfully."