Roy Williams calls Duke-UNC rivalry 'best in college sports' | College GameDay | ESPN

Roy Williams takes a walk with Marty Smith to discuss why he calls the Duke-UNC rivalry the "best in college sports," his mentors and the last second loss against Villanova in the NCAA championship two years ago. ✔ Subscribe to ESPN on YouTube: http://es.pn/SUBSCRIBEtoYOUTUBE ✔ Watch Latest Episodes on WatchESPN: http://es.pn/LatestEpisodes ✔ Watch ESPN on YouTube TV: http://es.pn/YouTubeTV Get more ESPN on YouTube: ► First Take: http://es.pn/FirstTakeonYouTube ► SC6 with Michael & Jemele: http://es.pn/SC6onYouTube ► SportsCenter with SVP: http://es/pn/SVPonYouTube ESPN on Social Media: ► Follow on Twitter:   / espn   ► Like on Facebook:   / espn   ► Follow on Instagram:   / espn   Visit ESPN on YouTube to get up-to-the-minute sports news coverage, scores, highlights and commentary for NFL, NHL, MLB, NBA, College Football, NCAA Basketball, soccer and more. More on ESPN.com: http://www.espn.com