Cooper missed much of the regular Super Rugby season through injury, before being suspended from the Reds' semi-final defeat. The maverick fly-half also missed the Wallabies 3-0 whitewash of Wales in June.
Robbie Deans will be a keen observer and may be forced reshuffle his back-line following the loss of Pat McCabe's.
The centre has been ruled out for six weeks due to a stress fracture. That could open the door to Cooper with Berrick Barnes, the man in possession of the No.10 jersey, moving into the centre.