Although both players would be better off if neither of them took drugs, since they don't trust each other, both would resort to doping in order to win. If we assume we have two tennis players who are choosing whether or not to resort to doping to win a tournament, we can analyze the situation using game theory. If the two athletes were on the same 'level playing field', their winnings would total £20 each, while the value of the singles tournament win would be £200, the probability of winning for the athlete using the stimulators is 100%, the value of playing tennis for a year at a professional level would be £20, the cost of being caught doping would be 10%, while the cost of being removed from a team would be £20, and the probability that a clean tennis player would be removed from a team simply because he is no longer at the level to be competitive would be 50%, we see the following prisoner's dilemma emerge, as seen in the Table