Days before his big fight with Conor McGregor, MMA Fighting's Ariel Helwani sat down with Floyd Mayweather at his gentleman's club Girl Collection to discuss his legacy, fighting Conor McGregor, Justin Bieber, and more. Subscribe: http://goo.gl/dYpsgH Check out our full video catalog: http://goo.gl/u8VvLi Visit our playlists: http://goo.gl/eFhsvM Like MMAF on Facebook: http://goo.gl/uhdg7Z Follow on Twitter: http://goo.gl/nOATUI Read More: http://www.mmafighting.com MMA Fighting is your home for exclusive interviews, live shows, and more for one of the world's fastest-growing sports. Get latest news and more here: http://www.mmafighting.com