Graham played 135 games for the Sharks and joined Wigan on a six-month contract, where he was reunited with former Cronulla lower grade coach Stuart Raper.
�I always wanted to come back to the NRL and I�m looking forward to joining Wests Tigers,� Graham said.
�Tim Sheens is someone who I�ve always respected and it will be great to work with him,�
�Wigan has been great to me, but the NRL has always been where I wanted to continue playing.�
Head Coach Tim Sheens says Graham is a great athlete and has a tremendous attitude.
�Nick is a class playmaker who takes the pressure off the halves,�
�His work-rate for a forward is tremendous,�
�His experience will certainly help with the younger guys that are coming through the grades�.