Get the latest United updates, transfer news and analysis delivered straight to your inbox every day for free "Attack wins you games, defence wins you titles," Sir Alex Ferguson famously said.
While that statement has been the cause of much debate across the years, the legendary former Manchester United boss' trophy-laden career speaks for itself and it's fair to say all of his greatest sides laid claim to formidable back lines.
From Denis Irwin, Jaap Stam, Nemanja Vidic to Rio Ferdinand, some world-class defenders have graced Old Trafford, and recent Premier League winners have only reaffirmed Ferguson's view, especially in the area of central defence.
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