ONE Championship’s heavyweight division features some of the hardest-hitting martial artists on the planet, with the power to end their opponent’s night with a single blow! Relive the top 10 heavyweight knockouts in ONE history, including Alain Ngalani’s spinning heel kick KO of Mahmoud Hassan, Brandon Vera’s one-punch knockout of Mauro Cerilli, and much more! Which heavyweight knockout was the most impressive? Subscribe to ONE Championship on YouTube: http://bit.ly/ONECHAMPIONSHIP Connect with ONE Championship: ONE Super App: http://bit.ly/ONESuperApp Website: https://onefc.com/ Facebook: https://www.facebook.com/ONEChampionship Twitter: https://twitter.com/ONEChampionship Instagram: https://www.instagram.com/ONEChampionship