Ever since people first started competing in sporting activities, there are those who have looked to gain an advantage, to wrest the upper hand from their opponent.
Mostly those endeavours have been legitimate. As technology has developed, along with our knowledge of human anatomy, so too have these efforts to heighten your chances of success become more complex, and seemingly dubious in their nature.
There is a saying that cheats never prosper and, in the sense that they can never claim to have genuinely competed and won, that is true. However there are countless times where a tactic or device that might be considered underhand has been employed, with the rules seemingly bent to a competitor's favour.
Everyone is leveraging something to gain an advantage. The human body has not been immune. Nutrition, training and recovery techniques and use of legal supplements have seen records tumble and seen bigger, faster stronger athletes. Much has been written of the evolution of rugby players such that the All Blacks of today are a far different specimen to those of just a few years ago.
But recently some extreme cases have emerged, such as major match-fixing allegations in European football, cycling's greatest cheat finally coming clean and now revelations of widespread doping across the Tasman involving numerous codes. In Australia a report alleged drug-taking, match-fixing and links to organised crime across a number of sporting codes.