WBC/IBF light heavyweight champion Artur Beterbiev's Oct. 23rd title defense in Moscow against Adam Deines has been postponed after Beterbiev suffered a rib injury in training. Beterbiev-Deines is expected to be rescheduled before the end of the year. Beterbiev (15-0, 15 KOs), the only current champion with a 100 percent knockout rate, has not fought since his tenth-round stoppage victory over Oleksandr Gvozdyk last October to unify world titles.