FILE - British lightweight boxer Amir Khan works out during a training session at Dekeleia boxing facility in Athens Thursday, Aug. 12, 2004. Amir Khan and Kell Brook will meet for an all-British fight at Manchester Arena on Saturday, Feb. 19, 2022. (AP Photo/Murad Sezer, File)

FILE - Britain's Kell Brook, right, throws a punch at Britain's Michael Jennings, during their WBO Inter-Continental welterweight title fight at the LG Arena in Birmingham, England, Saturday, Sept. 18, 2010. Amir Khan and Kell Brook will meet for an all-British fight at Manchester Arena on Saturday, Feb. 19, 2022. (AP Photo/Simon Dawson, File)

British boxer Kell Brook speaks during a press conference at the Exchange Hall, in Manchester, England, Thursday, Feb. 17, 2022. Amir Khan and Kell Brook will meet for an all-British fight at Manchester Arena on Saturday, Feb. 19, 2022. (Nick Potts/PA via AP)

British boxers Amir Khan, left, and Kell Brook, right, speak during a press conference at the Exchange Hall, in Manchester, England, Thursday, Feb. 17, 2022. Amir Khan and Kell Brook will meet for an all-British fight at Manchester Arena on Saturday, Feb. 19, 2022. (Nick Potts/PA via AP)