 It is considered to be one of the biggest rivalries in the football world and is considered the most famous fixture in English football.The "Roses Rivalry" with Leeds stems from the Wars of the Roses, fought between the House of Lancaster and the House of York, with Manchester United representing Lancashire and Leeds representing Yorkshire.The rivalry with Arsenal arises from the numerous times the two teams, as well as managers Alex Ferguson and Arsène Wenger, have battled for the Premier League title.