In celebration of the Ultimate Fighting Championships 20th anniversary, we look back at the top 20 knockouts in UFC history. From front kicks to body slams to one-punch KOs, check out the best of the best highlights below. Courtesy of UFC.com Like MMAWeekly.com on Facebook and Follow @MMAWeeklycom on Twitter . Powered By WizardRSS.com | Full Text RSS Feed | RFID | Amazon Affiliate
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