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The first 20 slides of this article are dedicated to the 20 greatest male fighters in MMA history, and the remaining 10 are dedicated to the top 10 all-time women fighters. 

United statesValley viewEmperor emelianenkoAnderson silvaMegumi fujiiFrancis ngannouMike roachVitor belfortPaul millerClaudia gadelhaBob dechiaraJoanna jedrzejczykFloyd mayweatherStipe miocicWeili zhangRonda rousey