winger josh mantellato broke brave bradford 's hearts as hull kr avoided a potential ladbrokes challenge cup banana skin with a 50-30 victory at the odsal stadium .
rovers twice came from behind , trailing 12-0 in the early stages to the kingstone press championship heavyweights , before easing clear with five tries in the final 18 minutes .
amid a pulsating and sometimes controversial cup tie , the hosts ultimately had no answer to italian international mantellato .