In todays video, The Boxing Round Up rewind the clock and take a look back at some of boxing's biggest first-round knockouts including #miketyson , #naoyainoue , #deontaywilder and many more devastating punchers.Did you miss our previous article... https://sportsvideos.club/boxing/oscar-de-la-hoya-usa-vs-ricardo-mayorga-nicaragua-knockout-boxing-fight-hd
