Former Manchester United manager Sir Alex Ferguson has described his side's "complacency" as a "disease" after they let the Premier League title slip from their fingers in 2012.
The Scotsman, who ended his 27-year career at Old Trafford two years ago, believes that the turning point in the 2011-12 season was when his side drew 4-4 against Everton.
United lost the title to their local rivals Manchester City on the final day of the campaign.
"There was confusion and uncertainty and the team gets disengaged from what their job was," Ferguson told Sky Sports News. "It was to win the league that day. Then the fourth goal goes in and the panic sets in.
"It was a capitulation. That capitulation cost us the league. I knew that night we were gone. It's an absolutely great example of complacency. It's a disease."
Ferguson won 38 trophies as United manager.
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