Bulls coach Francis Cummins has named Tom Olbison and Oliver Roberts in his 19-man squad for Sunday's visit of London Broncos.

Olbison was absent during last Thursday's win at Wakefield due to suffering concussion against Castleford the week previously and Roberts also missed out.

But the back-row forwards are back to replace injured half-back Lee Gaskell and Sam Wood as the Bulls seek victory in their first outing since being docked six points.

Bulls' 19-man squad: Danny Addy, Danny Bridge, Matt Diskin, James Donaldson, Luke Gale, Luke George, Jamie Foster, Adam Henry, Elliot Kear, Brett Kearney, Manase Manuokafoa, Anthony Mullally, Adam O'Brien, Tom Olbison, Adrian Purtell, Oliver Roberts, Nick Scruton, Adam Sidlow, Chev Walker.