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The world of MMA has some great brother duos – Hughes, Nogueira, Diaz, Miller, etc – but how cool is it that Anthony Pettis has a little brother coming up in the ranks of MMA that may be just as good as he is? Over the weekend Sergio Pettis improved his record to 8-0 at Resurrection Fighting Alliance 8 with a 51 second knockout of Dillard Pegg. Watch the video here, and get excited for the day 19-year old Sergio gets a call from the UFC.