THE absence of one of their gun players has put Holroyd Local Area Command's hopes of defending this year's annual rugby league title in doubt.
One insider said former NRL winger-turned police officer, Lee Oudenryn, had been ruled out of the clash with a groin strain.
The development has thrown this year's preparations into chaos, meaning players like Constable Nick Scheeringa will have to step up.
"I only committed expecting that I'll play 10 or 15 minutes off the bench, but injuries mean I'll potentially start the game," he said.
"But there might be one or two x-factors [in our team] that they won't be expecting."
Holroyd will be defending its title and is aiming to make it three wins from three years of competition.
And Constable Liam Daley and his Holroyd comrades are using that as extra motivation.
"We obviously don't want to lose because we are a better side than Rosehill," he said.
"We are not going in thinking we are going to dominate, but they should expect a good hard game of footy."
Senior Constable at Rosehill LAC, Josh Tolley, said if this year's game is like the previous two, there are sure to be fireworks on the field.
"The first year we played there was an all-in brawl and the last year three players were sent off," he said.
"But it is all forgotten about [after the the game] over a beer."
Proceeds go to Police Legacy, which cares for officers and their families in tough times.