Romero Duno took on Frank Martin in the final fight of the prelims for the Ortiz vs Martin PPV. Martin dominated from the beginning of the fight and knocked out Duno in the 4th round. Martin's record improved to 15-0 with the victory. Buy #OrtizMartin PPV here: https://www.foxsports.com/boxing/pbc/pay-per-view #PBConFOX #PBC #FrankMartin SUBSCRIBE for more from PBC ON FOX: http://foxs.pt/SubscribePBCONFOX The all-new FOX Sports App, built for the modern sports fan: https://tinyurl.com/y4uouolb ►FOX Sports YouTube channel: http://foxs.pt/SubscribeFOXSPORTS ►WWE ON FOX YouTube channel: https://foxs.pt/SubscribeWWEONFOX ►FOX Soccer’s YouTube channel: https://foxs.pt/SubscribeFOXSOCCER ►NASCAR ON FOX YouTube channel: https://foxs.pt/SubscribeNASCARonFOX ►CFB ON FOX YouTube channel: https://foxs.pt/SubscribeCFBonFOX ►SPEED - MOTORS on FOX’s YouTube Channel: https://foxs.pt/SubscribeSPEED See more from PBC ON FOX: http://foxs.pt/PBCONFOXFoxSports Like PBC ON FOX on Facebook: http://foxs.pt/PBCONFOXFacebook Follow PBC ON FOX on Twitter: http://foxs.pt/PBCONFOXTwitter Follow PBC ON FOX on Instagram: http://foxs.pt/PBCONFOXInstagram About PBC ON FOX: The official FOX Sports home of PBC coverage. We see every jab, cross, and knockout and share it with you, THE FAN. Our talent includes past and current PBC fighters such as Lennox Lewis, Shawn Porter, Tony Harrison, Abner Mares, and many more. PBC ON FOX content includes highlights, press conferences, weigh-ins and analysis from all PPV events and Fight Nights on FOX and FS1. You’ll also find clips from original studio shows like ‘Inside PBC Boxing’ and ‘PBC Face to Face’ as well as the best from the top athletes in the sport. Romero Duno vs Frank Martin | FULL HIGHLIGHT | PBC ON FOX https://youtu.be/B0YC5k_I95c PBC ON FOX https://www.youtube.com/c/PBConFOX