One of the most drawn out investigations in AFL history came to its conclusion when the league found Melbourne not guilty of tanking. However, former coach Dean Bailey and former club official Chris Connolly copped lengthy suspensions over a meeting where it was intimated the team lose games for draft picks. Despite the not guilty verdict, Melbourne were given a fine of $500,000.
Jockey Damien Oliver admitted to racing officials he placed a $10,000 bet on a race he was riding in. He made the confession two days after racing in last year's Melbourne Cup Carnival - a meet where he took out three races. He copped an eight month ban from racing and additionally had his jockey licence suspended for two months.
Disgraced cyclist Lance Armstrong admitted he took performance enhancing drugs during his reign of the Tour de France. The 41-year-old confessed to TV host Oprah after he was stripped of all his titles by world cycling body UCI, and completely discredited in a massive investigation by the USADA.
A training ground bust-up appeared to be the final straw for Manchester City as their controversial striker Mario Balotelli was shipped off back to Italy. Petulant behaviour off the field, including a fireworks incident and other training bust-ups marred the star striker's eventful time in the Premier League.
Dally M winner Ben Barba has been stood down by the Bulldogs after off-field behavioural issues. In a statement he said: "I'm incredibly sad to be stepping aside as I've been so blessed with what's happened to me over the past few years. But I feel as though I would be wearing a mask if I didn't confront the matters I've been dealing with until now. I feel it is best to deal with these problems front on and I believe that by doing so, this will make me a better person and player in the future."
A drug test for veteran boxer Francois Botha, who took on Sonny Bill Williams for the WBA international heavyweight title, found he had taken performance enhancing drugs, an accusation he denied. Botha claimed the test had been fixed by a member of Williams's camp. Botha also claimed no one told him the fight would only go to 10 rounds instead of the traditional 12 round boxing bout.
Australian sport was rocked by claims of systematic drug use and match fixing in a stunning report released by the Australian Crime Commission. It has been alleged that clubs had been infiltrated by crime figures, and players were using both recreational and performance enhancing drugs. The ACC also alleged that matches had been fixed for betting purposes. The investigation is ongoing.
Essendon faced accusations that players were given performance enhancing drugs during the 2012 AFL season. The players allegedly were given injections of peptides in a secret off-site location. The club deny any wrongdoing, and the players claim they have no knowledge of any suspicious injections.
Paralympic champion Oscar Pistorius is currently facing trial after he allegedly shot model girlfriend Reeva Steenkamp while she was in the bathroom. The amputee athlete claimed he thought he was shooting a burglar.
Some of Australia's best male swimmers, including Eamon Sullivan and James Magnussen, confessed they had taken Stilnox during a bonding session in Manchester ahead of the London Olympic Games. It is believed they harrassed members of the Australian female swim team with prank phone calls, door knocking and other "inappropriate behaviour".
Kurt Tippett and Adelaide's salary cap scandal
Kurt Tippett faced an uncertain summer after Adelaide revealed it had paid the forward money outside the salary cap. The club were found to have entered a secret agreement with Tippett not submitted to the AFL that guaranteed sponsor income. Tippett was banned half a season for his part in the fiasco, while Adelaide was been fined $300,000 and prohibited from the first two rounds of the 2013 draft and from gaining father-son picks at that draft.