#3 UFC 196 (1.5 million buys)

UFC shocked the world when they pitted the Featherweight Champion Conor McGregor against Welterweight star, Nate Diaz at UFC 196.
It had been widely expected that McGregor's next fight would have been versus Rafael dos Anjos at Lightweight but instead the MMA world was thrown a curve ball.
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However, it is one that majorly paid off.
McGregor versus Diaz was money. The two trash talked fans into parting with their money and their Welterweight scrap was well worth the price of admission.
The smaller McGregor started lively but faded and the bigger, stronger, Diaz picked him off to win the fight via submission.
This was merely a taster for what the pair would produce in an even more memorable re-match. The public's appetite was whetted too as evidenced by the buyrate UFC 202 pulled when the pair contested their famous rematch.