Former AFL boss Andrew Demetriou was repeatedly warned about the poor financial health of training group Acquire Learning before the company collapsed with a $145 million debt.

On Wednesday, the Crown Resorts director was grilled in the Supreme Court about his involvement in the company as part of a liquidator's inquiry into why Acquire collapsed in May 2017 after receiving tens of millions of dollars in federal government subsidies.

Andrew Demetriou. Credit:Simon Schluter

Mr Demetriou was paid $900,000 a year for his three-day-a-week job as executive chairman of the company’s “advisory group”.

Acquire Loan also loaned the former AFL chief $1.68 million to buy shares in the company.