Huddersfield prop Anthony Mullally today joined the Bulls on a one-month deal and went straight into their 19-man squad to face Wakefield on Thursday.
The arrival of the imposing front-rower, 22, is a major boost to Bradford head coach Francis Cummins following the recent departure of Garreth Carvell.
Mullally - who stands 6ft 5in and began his career at home-town club Widnes - played in all three of Ireland's World Cup matches last year and was 18th man in Huddersfield's Super League opener at Wigan.
Mullally said: "This is a big opportunity for me, I cannot wait to get out there.
"I want to have a big season and nothing has changed on that front for me. I want to make my presence known here.
"I am hoping to get a chance on Thursday evening and, from there, should I feature, I will be fully focused on maintaing my place in the line-up.
"If I can impress and play well, hopefully I will be able to play a fairly key role over the next few weeks.
"The history of this club speaks for itself and I am delighted to be a part of it. The boys have been great with me today and the atmosphere is fantastic."
Cummins said: "We are really pleased to have Anthony here and I am looking forward to seeing what he comes up with over the course of the next four weeks.
"He is a player that we as a club have been monitoring for some time now.
"Anthony impressed during the World Cup, after a strong season both with Huddersfield and, on loan, at Batley.
"I believe he will make a similar impact for us, as he has done with the clubs he has appeared for in the past."
Tom Olbison misses out after sustaining a head injury during Sunday's defeat to Castleford.
Bulls 19-man squad to face Wakefield: Danny Addy, Danny Bridge, Matt Diskin, James Donaldson, Jamie Foster, Luke Gale, Lee Gaskell, Luke George, Adam Henry, Elliot Kear, Brett Kearney, Manase Manuokafoa, Anthony Mullally, Adam O'Brien, Adrian Purtell, Nick Scruton, Adam Sidlow, Chev Walker, Sam Wood.
* Jarrod Sammut looks certain to make his debut for Wakefield against the Bulls on Thursday after being included in their 19-man squad.
Sammut, who signed for the Wildcats on Friday, was in Cardiff this morning to transfer his visa paperwork over as the club ensured his application was fast-tracked to make him eligible to play.
Sammut replaces the injured Jimmy Keinhorst, who sustained a hamstring injury on his debut during Sunday's defeat at Salford Red Devils.