Kell Brook
Buckley lost 256 of his 300 contests, which is the second most in boxing history behind Reggie Strickland. Throughout his career he fought a number of quality world champions and British champions including Duke McKenzie, Naseem Hamed, Acelino Freitas, Jason Cook, Paul Ingle, Patrick Mullings, Dean Pithie, Jason Booth, Michael Brodie, Scott Harrison, Michael Gomez, Johnny Bredahl, Gavin Rees, John Murray, Bradley Pryce, Derry Mathews, Lee Meager, Dave Stewart, Gary Woolcombe, Lee Selby and Kell Brook.