By Tom Victor Tyson Fury has hit back at rival Oleksandr Usyk’s camp, calling the Ukrainian’s manager Egis Klimas a “rat b******” for implying the British fighter was running away from their bout. Fury and Usyk were poised to face off in Saudi Arabia on February 17, only for the former to suffer a cut in training. A new date of May 18 has been set, with the fight still taking place in Riyadh. There had been suggestions Filip Hrgovic might be drafted in as a late replacement, but these plans have been shelved. Turki Alalshikh of Saudi Arabia’s General Entertainment Authority, speaking on the sa…