Toby Greene's father has been handed a nine month jail sentence for assaulting a policewoman after the 2019 AFL Grand Final.

Police were reportedly called onto the scene after reports of a drunken man in the bathrooms of the MCG just after 5pm.

Michael Greene reportedly headbutted a female police officer and was charged with intentionally and recklessly causing injury, resisting arrest, public drunkenness and breaching his bail.

The 60-year old had been locked up since the incident and didn't apply for bail.

It is believed that he has not made contact with Toby for several years.