Three knockdowns! Muhammad Ali vs Oscar Bonavena EPIC 15th round 🎬 Archive footage
â–ºSUBSCRIBE http://bit.ly/SSBoxingSub Relive a gruelling 15th round as Muhammad Ali dropped Oscar Bonavena three times at Madison Square Garden! â–ºTWITTER: https://twitter.com/skysportsboxing â–ºFACEBOOK: http://www.facebook.com/skysportsboxing â–ºWEBSITE: http://www.skysports.com/boxing MORE FROM SKY SPORTS ON YOUTUBE: â–ºSKY SPORTS FOOTBALL: http://bit.ly/SSFootballSub â–ºSKY SPORTS BOXING: http://bit.ly/SSBoxingSub â–ºSKY SPORTS CRICKET: http://bit.ly/SubscribeSkyCricket â–ºSOCCER AM: http://bit.ly/SoccerAMSub â–ºSKY SPORTS F1: http://bit.ly/SubscribeSkyF1 â–ºSKY SPORTS: http://bit.ly/SkySportsSub â–ºSKY SPORTS…