Kell Brook claims he is fully prepared and has covered all angles ahead of the IBF world welterweight clash at the O2 on Saturday. <a href=' http://www1.skysports.com/boxing/news/12183/9847288/kell-brook-and-anthony-joshua-head-a-brilliant-sky-sports-box-office-bill-on-saturday-may-30' class='instorylink'>Brook vs Gavin is live on Sky Sports Box Office. Book it now by clicking here </a>
