Stream UFC 300 on ESPN+ https://plus.espn.com/ufc/ppv Former UFC lightweight champion Charles Oliveira has spent his entire life fighting to be at the top of his game, overcoming multiple challenges with his health as he grew up near the favelas in São Paulo, Brazil. Brett Okamoto traveled to Brazil to learn more about what Charles fights for. #UFC300 #Oliveira #UFC ? For more UFC, sign up for ESPN+ http://espnplus.com/ufc/youtube ? Get the ESPN App: http://www.espn.com/espn/apps/espn ? Subscribe to ESPN on YouTube: http://es.pn/SUBSCRIBEtoYOUTUBE ? Subscribe to ESPN FC on YouTube: http://bit.ly/SUBSCRIBEtoESPNFC ? Subscribe to NBA on ESPN on YouTube: http://bit.ly/SUBSCRIBEtoNBAonESPN ? Watch ESPN on YouTube TV: http://es.pn/YouTubeTV