25 Biggest Upsets in MMA History

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25 Biggest Upsets in MMA History
Matt Serra/ Scott Petersen for MMAWeekly.com

People like to think simple math can properly calculate outcomes when it comes to MMA.

Matt Serra has proven that against all odds, even the impossible can happen.

Here, we will take a look at some of the most surprising of outcomes in the history of the sport, where guys like the aforementioned Serra, Fabricio Werdum and even Frankie Edgar have defied those odds and come out on top.

 

Matt Serra/ Scott Petersen for MMAWeekly.com

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