Middleweight Sergiy Derevyanchenko (11-0, 9 KOs) picked a 12th round TKO over Tureano Johnson (20-2, 14 KOs) on Friday night at the Buffalo Run Casino in Miami, Oklahoma now making him the number one contender for the IBF middleweight title. The fight was an evenly contested bout until Derevyanchenko’s   Middleweight