Gervonta Davis knockouts Mario Macias in 30 seconds
Two-time champ Gervonta Davis completely dismantles Mario Macias in the ring, delivering his 15th KO in 16 fights back in 2016. #GervontaDavis #GervontaDavisHighlights #TankMartin Visit PremierBoxingChampions.com for more info. SIGN UP FOR FIGHT ALERTS: https://pbcham.ps/FightAlerts FOLLOW US: Tweets by premierboxing https://instagram.com/premierboxing https://www.facebook.com/premierboxingchampions