#4 Alistair Overeem
Alistair Overeem is one of the most celebrated MMA fighters of all-time due to his exploits in the Heavyweight division – both around the world with different promotions as well as with the UFC.
The Reem is one of the biggest, baddest men on the planet, but if you look at the above picture, he isn’t quite as big as he used to be. This is because he failed a drug test in the buildup to UFC 146 where he tested positive for elevated ratio of testosterone to epitestosterone at 14:1, well over the legal ratio of 6:1. Overeem duly blamed it on a doctor’s prescription and was forced to serve a 9-month suspension.
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His return from suspension saw him lose three out of his next four fights, but the Dutch fighter rediscovered his form in his new body to go on a four-fight win streak till he was defeated by reigning UFC Heavyweight Champ, Stipe Miocic