Morley could join Bradford for the rest of the season

To make the play-offs, Sydney must beat Canterbury on Sunday and hope that rivals Manly and Penrith both slip-up.

Morley, 28, will play for the Bulls before linking up with the GB squad for the Tri-Nations series.

"It's only a move until the end of their season. It's not a sign I'm looking to move back there," he said.

If the Roosters miss out on the play-offs, Morley could make his Bradford debut at home to Huddersfield on 11 September.

The Bulls play their last game of the regular season at St Helens.

"This is fantastic news for the club," said Bradford chairman Chris Caisley.

"Adrian is one of the best forwards in the world and having him on board will give us a massive boost going into the play-offs.

"He is really looking forward to joining the Bulls and feels that coming across at this time of the year will be a great way to prepare for the Tri-Nations Series.

My first and main priority is with the Roosters Adrian Morley

"I would like to thank everyone at the Roosters for their help in arranging this agreement."

Morley is the third NRL player on a short-term deal with a Super League club.

Andrew Johns is joining Warrington, while Sione Faumuina is linking up with Hull.

Morley, who is in his fifth season at Sydney, has denied the deal could pave the way for a permanent move to Odsal.

"My first and main priority is with the Roosters," he told Sydney's official website.

"I want us to make the finals and keep progressing in them, which would rule out any move to England.

"But if that doesn't happen, playing for Bradford would be a great opportunity."