Manchester United vs Liverpool is arguably England's fiercest rivalry.
Sure, the Red Devils and Leeds have had some bitter tussles over the years, as have the likes of West Ham and Millwall. But United's derby with Liverpool is one that is steeped in history and tradition. Both teams have harboured their fair share of hard nuts, from Roy Keane, Bryan Robson and Nemanja Vidic at United to Graeme Souness, Tommy Smith and Steve McMahon at Liverpool.
Football has evolved in recent years, with the macho hardman persona slowly dying out. It's something that is largely celebrated in helping portray the game as progressive, but it's safe to say it certainly riles the old guard.
