THREE years after Victoria's gambling regulator gave the AFL the all-clear over suggestions teams were tanking to win better draft picks, the regulator will again investigate the AFL over Brock McLean's revelations.

A spokeswoman for the Victorian Commission for Gambling and Liquor Regulation said they were ''aware of the comments'' and the regulator ''will be making its own inquiries''.

Melbourne coach Dean Bailey with his team at quarter time during the round 18 clash against Richmond in 2009. Melbourne lost the game by four points. Credit:Sebastian Costanzo

The regulator investigated the possibility of tanking in the AFL in 2009.

After a two-month investigation the regulator found ''no evidence that tanking has occurred'' and it was satisfied ''with measures taken by the Australian Football League to ensure the integrity of football matches''.

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The gambling commission has the power to set gambling conditions on the AFL, such as banning betting on teams at the bottom of the ladder, which have the greatest incentive to tank.

It also has the power to revoke the AFL's status as a sports-controlling body, stripping it of its power to demand money for betting on games.