Before ONE Light Heavyweight Kickboxing World Champion Roman Kryklia squares off against Australian phenom Alex Roberts for the inaugural ONE Heavyweight Muay Thai World Title at ONE Fight Night 17 on Prime Video, relive his dominant undefeated run in ONE Championship so far! #ONEFightNight17 | Friday at 8PM ET ???????? Watch Live on Prime ?? Live TV broadcast in 190+ 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) ??? Tickets ?? https://bit.ly/ofn17tix Follow Roman Kryklia on Instagram: https://www.instagram.com/romankryklia/ 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, vis