Carl Froch believes the Oleksandr Usyk was touching the referee to ask for more room before being denied a knockout in his win over Tyson Fury last weekend. Usyk won via split decision in Saudi Arabia to become undisputed heavyweight champion of the world, inflicting a first professional defeat on his opponent in the process. Yet while the 37-year-old won the bout, there was controversy during the clash. In the ninth round, Usyk had Fury on the ropes and looked set to land a decisive blow to bring the fight to a premature end. Referee Mark Nelson prevented that from happening, however. And Fro…