Roy Keane and Gary Neville have HEATED debate over Man United players' work-ethic and attitude!

SUBSCRIBE â–º http://bit.ly/SSFootballSub After Manchester United's 2-0 defeat to Manchester City, Roy Keane and Gary Neville got into a heated debate about the players' work ethic and attitude. Watch Premier League LIVE on Sky Sports here â–º http://bit.ly/WatchSkyPL â–ºTWITTER: https://twitter.com/skysportsfootball â–ºFACEBOOK: http://www.facebook.com/skysports â–ºWEBSITE: http://www.skysports.com/football â–ºSOCCER AM: http://bit.ly/SoccerAMSub â–ºSKY SPORTS BOXING: http://bit.ly/SSBoxingSub