AFL great Mark Thompson has been arrested and released without charge following an investigation into drug trafficking.
A Port Melbourne property belonging to Thompson was raided by police on Friday and he was arrested on Tuesday.
Thompson, 54, presented himself to police by appointment and was released without charge, pending further inquiries.
Three other people have been charged with drug trafficking following the Port Melbourne raid and another search in Geelong.
They include Thomas Windsor, 28, who was reportedly staying at the property owned by Thompson.
A 31-year-old Lara man and a 22-year-old Mill Park woman were also charged and remanded in custody.
Media reports suggest Windsor and the Lara man, named as Karl Holt, have bikie links in the Geelong area.
The trio were remanded in custody and are due to face court at a later date.
Police said the arrests were part of an ongoing investigation into drug trafficking.
The Port Melbourne raid was captured in footage provided to Seven News, showing police storming the Rouse Street property.
"Police. Don't move," officers shout as they burst into the converted warehouse.
Thompson's decorated AFL career includes winning three premierships playing for Essendon, where he played 202 games.
He coached Geelong to two premierships before returning to the Bombers as an assistant coach.
Thompson was at Essendon when the club's supplements saga came to light in 2013.
He was later fined $30,000 for his role in the program and has since said the saga sapped his passion for the game.