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    Cheating through the use of illegal performance enhancements (such as doping) is a persistent problem in sport. It has been suggested that one response to this problem is to separate sport into two parallel leagues. One league would resemble sport as it is currently practised ? i.e. with restrictions on use of particular enhancements ? and the other would not possess these restrictions, allowing those that wish to use currently illegal enhancements to do so. In this paper I articulate the ?two l…Read more