OFFICIAL WEIGHTS  ‘THE BIG BRAWL’ PPV BRITISH & COMMONWEALTH HEAVYWEIGHT CHAMPIONSHIPS – MAIN EVENT – 12 ROUNDS DERECK CHISORA (14-0, 9 KOs), British & Commonwealth Heavyweight Champion, London, UK 261 LBS. TYSON FURY (14-0, 10 KOs), Challenger, Manchester, UK 255 ½ LBS.  BRITISH LIGHT WELTERWEIGHT CHAMPIONSHIP CO-FEATURE– 12 ROUNDS ASHLEY THEOPHANE (29-4-1, 7 KOs), British…