Bradford have lost the services of Huddersfield's Ireland prop Anthony Mullally but agreed a new deal to keep Warrington forward Danny Bridge on loan for the rest of the season.
Mullally, 22, has played in six of the Bulls' eight Super League matches so far this year but has been recalled by the Giants, who go into the Easter programme on the back of four straight defeats.
Warrington also have the right to recall the 21-year-old Bridge at any time but he is set to make his eighth appearance in the derby with Leeds at the Provident Stadium on Thursday night.
"I am absolutely delighted to have Danny on board for the remainder of the season," Bradford coach Francis Cummins said. "He has done really well for us so far.
"He has at times been forced to play out of position and has stood up to the challenge on every single occasion.
"He has worked very hard and I am really looking forward to seeing what he produces in the weeks and months ahead."
The Bulls are bottom of Super League on minus two points but are hoping to win back some or all of the six points they were docked for going into administration.
The club are still waiting to hear an appeal date.