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LONDON, ENGLAND - DECEMBER 12: Anthony Joshua (L) is ordered to a neutral corner as he stops Dillian Whyte (R) in the seventh round during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - DECEMBER 12:  Anthony Joshua (L) is ordered to a neutral corner as he stops Dillian Whyte (R) in the seventh round during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England.  (Photo by Richard Heathcote/Getty Images)

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LONDON, ENGLAND - DECEMBER 12: Anthony Joshua (L) reacts as he knocks Dillian Whyte (R) down in the seventh round during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - DECEMBER 12:  Anthony Joshua (L) reacts as he knocks Dillian Whyte (R) down in the seventh round during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England.  (Photo by Richard Heathcote/Getty Images)

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LONDON, ENGLAND - DECEMBER 12: Anthony Joshua celebrates victory over Dillian Whyte with his belts after the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - DECEMBER 12:  Anthony Joshua celebrates victory over Dillian Whyte with his belts after the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England.  (Photo by Richard Heathcote/Getty Images)

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LONDON, ENGLAND - DECEMBER 12: Anthony Joshua and Dillian Whyte are pulled apart as they exchange punches after the bell at the end of the first rouns during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - DECEMBER 12:  Anthony Joshua and Dillian Whyte are pulled apart as they exchange punches after the bell at the end of the first rouns during the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England.  (Photo by Richard Heathcote/Getty Images)

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LONDON, ENGLAND - DECEMBER 12: Anthony Joshua celebrates victory over Dillian Whyte with his belts after the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England. (Photo by Richard Heathcote/Getty Images)

LONDON, ENGLAND - DECEMBER 12:  Anthony Joshua celebrates victory over Dillian Whyte with his belts after the British and Commonwealth heavyweight title contest at The O2 Arena on December 12, 2015 in London, England.  (Photo by Richard Heathcote/Getty Images)