The NSW deputy premier has blasted Australian Rugby League Commission chairman Peter Beattie for failing to champion his government's controversial plan to knock down and rebuild Sydney's Allianz Stadium.
Mr Barilaro questioned where the former Queensland Labor premier's allegiances lie, saying he hadn't done enough to defend the government's $730 million rebuild of the Moore Park football stadium.
"I'm more disappointed the NRL hasn't come out strong enough in relation to the government's plan to build sporting stadiums for the future," Mr Barilaro told AAP.
"I'd even question where Peter Beattie's allegiances sit, a former Labor premier of Queensland heading up the NRL, and I'm bloody disappointed that he's not out there criticising (NSW Labor leader) Michael Daley."
Premier Gladys Berejiklian has come under intense scrutiny for splashing cash on the demolition and reconstruction of Allianz Stadium, despite arguing her government was spending close to $90 billion on other infrastructure in NSW.
Mr Barilaro conceded the government had done "a terrible job" at selling the stadiums policy to voters ahead of the March 23 election.
He said Mr Daley had also capitalised on the situation.
"It is marketing. It's politics at it's best from the Labor party and Michael Daley," he said.
"He's a liar and he'll lie and say whatever he needs to say to win government."
Mr Barilaro believes Mr Beattie and the NRL should be doing more to advocate for the stadium plan.
"If he wants to show bipartisanship, if he wants to show he's genuine about the game of NRL then he should actually get out there and prosecute the case with us, because they're the beneficiaries," he said.
"We've done everything we said we would do yet I don't feel like we're getting the support."
The Land and Environment Court on Wednesday dismissed a community group's challenge to the demolition of the stadium.
However, Local Democracy Matters on Thursday lodged an appeal in NSW's highest court. It will be heard on Monday.
Ms Berejiklian was not clear on Thursday if she would push ahead with the demolition before the state election, telling reporters: "It's business as usual."
The NRL has been contacted for comment.
