Alex Krassyuk reacts after Oleksandr Usyk became undisputed heavyweight champion and believes it won't be done again for another 20 or 30 years. Hit 'Subscribe' above to ensure you never miss a video from the TNT Sports Boxing YouTube channel. From the front row to your front room. From the centre circle to your sofa. TNT Sports brings you closer to the live sport you love. Get your Discovery + pass now to experience UEFA Champions League and Europa League drama, exclusive Premier League action, plus Premiership Rugby, MotoGP, Boxing, UFC, WWE and more ▶️ https://auth.discoveryplus.com/gb/product?flow=purchase Twitter: https://twitter.com/tntsports Facebook: https://www.facebook.com/tntsports Instagram: https://www.instagram.com/tntsports/ Website: https://www.tntsports.co.uk/