|Ladbrokes Challenge Cup fifth round|
|Bradford Bulls (12) 30|
|Tries: O'Brien, Ferguson, Addy, Gaskell, Walshaw Goals: Shaw 5|
|Hull KR (18) 50|
|Tries: Mantellato 4, Welham, Kelly, Horne, Larroyer, Boudebza Goals: Mantellato 7|
Josh Mantellato ran in four tries as Hull KR battled past Bradford Bulls to reach the last 16 of the Challenge Cup.
The Super League side led by six at the interval with Mantellato, Kris Welham and Albert Kelly going over, and Adam O'Brien and Dale Ferguson touching down for the hosts.
Graeme Horne and Kevin Larroyer added to the Robins' tally after the break.
Danny Addy, Lee Gaskell and Lucas Walshaw put the Bulls in front before Mantellato went over three more times.
A converted last-minute try from John Boudebza gave Chris Chester's men a 20-point win as Mantellato ended with a personal haul of 30.
Elsewhere in the Challenge Cup, there were wins for League One side York City Knights and Championship outfits Featherstone Rovers, Batley Bulldogs and Dewsbury Rams.
They join Wakefield, Leigh and last season's top eight Super League sides in Monday's sixth round draw.
Bradford Bulls: Shaw, Uaisele, Walker, Henry, Ulugia, Gaskell, Addy, Clough, O'Brien, Sidlow, Olbison, Ferguson, Pitts.
Replacements: Walshaw, Mellor, Baile, Fleming.
Hull KR: Dixon, Mantellato, Welham, Salter, Sio, Campese, Kelly, Walker, Lunt, Burke, Larroyer, Horne, McCarthy.
Replacements: Cockayne, Donaldson, Ollett, Boudebza.