Rare, unseen footage of "Marvelous" Marvin Hagler working out and going a round of sparring months before his 1986 clash with John "The Beast" Mugabi, offering a raw look inside the camp of the undisputed middleweight world champion. Subscribe to our YouTube channel to get notified about the latest highlights, free full fights, and fight week content as it's posted. Follow Top Rank on X: http://www.twitter.com/trboxing Follow Top Rank on Instagram: http://www.instagram.com/toprank Follow Top Rank on TikTok: https://www.tiktok.com/@trboxing Like Top Rank on Facebook: http://www.facebook.com/t