Mikey Musumeci tapped out Yemeni star Osamah Almarwai to retain the ONE Flyweight Submission Grappling World Title at ONE Fight Night 10! Tune in to Prime Video NOW to catch the rest of ONE Fight Night 10!    LIVE NOW | #ONEFightNight10 ???????? Watch LIVE on Prime ?? https://amazon.com/ofn10 ?? Live TV broadcast in 170+ countries (check local listings) ?? Also available on ONE YouTube and ONE Facebook (geo-restrictions may apply) ?? Also available on Watch.ONEFC.com (geo-restrictions may apply) Follow the athletes on Instagram: Mikey Musumeci: https://www.instagram.com/mikeymusumeci/ Osamah Almarwai: https://www.instagram.com/osamahalmarwai/ Subscribe and turn on notifications to get the latest ONE content: http://bit.ly/ONECHAMPIONSHIP To watch ONE events in most regions, visit: https://watch.onefc.com To watch ONE events in the U.S. and Canada visit: https://www.primevideo.com To shop official ONE gear, visit: https://one.shop To download the ONE Super App, visit: http://b