Donald John Cockell (22 September 1928 – 18 July 1983) was an English boxer. He fought for most of his career as a light-heavyweight and became the British and European champion at that weight. Later in his career he moved up to heavyweight and held the British and Commonwealth heavyweight titles. He is best remembered for fighting against Rocky Marciano for the world heavyweight championship. Cockell defeated a number of top heavyweights in his career, including Roland La Starza, Harry Matthews (three times), Tommy Farr, Freddie Beshore, Johnny Arthur, Johnny Williams and Uber Bacilieri. In his earlier incarnation as a Light Heavyweight he defeated top contenders such as Nick Barone, Albert Yvel, Lloyd Marshall and Albert Finch, holding regional titles in both weight incarnations. Early life His full name was Donald John Cockell and he was born on 22 September 1928 in Balham, London, the son of Mary Cockell, a domestic servant from Battersea. He never knew his father. He was a blacksmith by trade, and as a result developed a strong physique. He began boxing in fairground booths and soon rose through the amateur ranks until he was ready to turn professional in 1946. Professional career Cockell had his first professional fight on 26 June 1946 against Trevor Lowder and won it by a knockout in the fifth round. He continued to build up an impressive fighting record marred by the occasional defeat. By 1950 he was ready to challenge for the vacant British light-heavyweight title recently vacated due to the retirement of Freddie Mills. On 17 October at Harringay Arena he fought Mark Hart and took the title with a knockout in the fourteenth round. Cockell fought and won two more fights before fighting the Frenchman Albert Yvel for his European light-heavyweight title. The bout took place on 27 March 1951 at Earls Court, London and Cockell won by a technical knockout in the sixth round. Cockell had two more wins before defending his British and European titles against Albert Finch, who had previously been British middleweight champion. The bout was held on 16 October 1951, at Harringay Arena, and Cockell won by a knockout in the seventh round. Cockell decisively lost his next fight against the American heavyweight Jimmy Slade. Fighting at Harringay Arena, Cockell was knocked down twice in the first round, once in the second, and twice more in the fourth. The referee then stopped