Kell Brook born Ezekiel Brinsly Reid Brook; 3 May 1986 is an English professional boxer from Sheffield who fights in the welterweight division. He is a former holder of the British welterweight title and the WBO Inter-continental title at the same weight and presently holds the WBA version of the inter-continental title. In 2009 he was voted Britain's young boxer of the year by the Boxing Writer's club. Brook is also known to be a huge fan of Sheffield United. He is currently ranked by Ring Magazine as the number 4 welterweight in the world behind Manny Pacquiao, Juan Manuel Marquez, and Floyd Mayweather Jr., and is the number one welterweight in Great Britain. He is known for his rivalry with Amir Khan and is the mandatory challenger for the IBF World Welterweight Title, presently held by Devon Alexander.