Cooper suffered concussion last round but has passed a fitness test to take his place in the AAMI Park match.
Wessels said Toomua would take some pressure off Cooper as they hunt a maiden finals berth.
Having coached Toomua when he was an assistant at the Brumbies back in 2012, Wessels said he knew the 29-year-old’s game well.
“Matt’s got the opportunity to come off the bench and make an impression and we will take it from there,” coach Dave Wessels said
“He’s played a fair bit of 12 and played 15 as well at Leicester … he’s a pretty intelligent guy and he’s across some of the lingo that he needs but one of the benefits of our game is that it’s pretty simple.”
“It may be a blessing in disguise as Isi (Naisarani) probably needs a little break although he’s ben playing well for us,” Wessels said.
“We’re lucky we’ve got some depth in the back five of the scrum.”
That includes Richard Hardwick, who has been named at openside flanker.
“Dickie has been a bit unlucky with injury this year but off the bench last week he got a crucial turnover in the Reds’ 22 and we’ve missed a specialist flanker who plays to the ball so that’s a part of the game he will help with,” Wessels said.
After a three-from-three start, it took the Rebels until Round 13 to earn their sixth win of the competition. They lost their top spot in the Australian conference to the Brumbies last weekend and will be looking to secure a win against an out of sorts Bulls side to keep their chances of taking out their conference alive.
Rebels: Dane Haylett-Petty (c), Jack Maddocks, , Reece Hodge, Billy Meakes, Marika Koroibete, Quade Cooper, Will Genia, Rob Leota, Richard Hardwick, Angus Cottrell, Matt Philip, Ross Haylett-Petty, Jermaine Ainsley, Anaru Rangi, Tetera Faulkner. Reserves: Hugh Roach, Matt Gibbon, Sam Talakai, Sam Jeffries, Pone Fa’amausili, Michael Ruru, Campbell Magnay, Matt Toomua.
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