Ian Thorpe knocked his starting blocks into the water prior to the start of an Olympic qualifying heat and was disqualified from the Olympics. Thorpe claimed a noise from behind him caused the false start. Craig Stevens ended up forfeiting his position so that Thorpe could compete in the 2004 Athens Olympics.

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Mark French doping - Cyclist Mark French was found guilty of doping, but then had that conviction overturned after two years because of a lack of evidence.

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Overtime - A 2006 AFL match between St Kilda and Fremantle went on longer than it should have because the umpires couldn't hear the final siren, and St Kilda tied the match in the unplanned extra time. The match result was eventually overturned.

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Melbourne Storm stripped of premierships - The Melbourne Storm were found to have breached the NRL's salary cap over five years and were stripped of their 2007 and 2009 premierships.

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Ryan Tandy - Ryan Tandy was found to have manipulated the scoring in the NRL match between the Canterbury-Bankstown Bulldogs and North Queensland Cowboys.

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Stillnox Six - Six Australian swimmers at the 2012 London Olympics used Stillnox, a drug banned by the Australian Olympic Committee and the swimmers had their funding withdrawn.

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Tanking scandal - Dean Bailey and Chris Connolly were found to have intentionally lost matches at the end of the Melbourne Football Club's 2009 season to get a higher draft pick.

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Organised crime in Aussie sports - Drug use and organised crime were widespread in Aussie sports according to the Australian Crime Commission.

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Bernard Tomic's father's assault - Bernard Tomic's dad physically assaulted Tomic's tennis partner and was charged.

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Essendon Football Club supplements saga - The Essendon Football Club supplements saga between 2013 and 2016 was a systematic doping scandal at the AFL club that revealed a dark underbelly into the sport.

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Cronulla-Sutherland Sharks supplements saga - The NRL Cronulla-Sutherland Sharks were doping their players through supplements in 2013.

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Southern Stars FC match fixing - The Southern Stars FC of the Victoria Football Club was accused of match-fixing in 2013.

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Hating Adam Goodes - Adam Goodes was consistently booed everywhere except Sydney because of what Goodes believed was racism. He eventually stepped down due to the booing.

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Parramatta Eels salary cap breach - The NRL's Parramatta Eels were found to have breached their salary cap and were fined $1 million.

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Ball-tampering scandal - Cameron Bancroft of the Australian cricket team was charged with tampering with balls during tests against South Africa.

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Boomers' brawl - A massive fight broke out between the Boomers and the Philippine basketball team during a game after the Aussie side allegedly called their opponents "monkeys".

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Ben Cousins' latest fiasco - Ben Cousins' has been arrested for drug possession, with many calling on the former AFL star to get help.

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Arrest - Ben Cousins was unable to maintain composure in court when details of his arrest were made public.

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Dennis Lillee acts like a bully - Bowler Lillee once tried to kick a Pakistani batsman, Javed Miandad, and Lillee fled when Miandad raised his bat threateningly. You can watch the altercation here.

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Leigh Matthews breaks opponent's jaw - Leigh Matthews was charged with assault by police after breaking the jaw of Geelong's Neville Bruns.

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Phil Carman gone wild - Phil Carman famously pushed his opponent's face into the mud and headbutted an umpire. You can watch the altercation here.

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Kevin Muscat plays dirty - Kevin Muscat made a dirty tackle on a young player, injuring his knee so badly the victim was out of an entire year. You can watch it go down here.

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Lleyton Hewitt uses racism to defend poor play - In 2001, Lleyton Hewitt accused a Black referee of favouring his opponent, who was also Black, during a match. You can watch those comments here.

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John Bourke shoves official - John Bourke was suspended six years from the AFL after he shoved an official. You can watch the altercation here.

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John Hopoate sticks finger where it doesn't belong - John Hopoate once stuck his finger up an opponents 'behind' during a game. You can see that go down here.

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Peter Filandia bites scrotum - Peter Filandia bit opponent Chad Davis' scrotum and Filandia only received a slap on the wrist: a ten-game ban.

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Cheating Carlton Football Club - The Carlton Football Club was caught exceeding the AFL salary cap and hiding their finances from the league in 2001.

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Ian Thorpe false start -