Manchester United reportedly organised for their hotel to be searched for bugging devices prior to Saturday's match against arch rivals Liverpool.
Louis van Gaal's team executed a 3-1 victory at Old Trafford, but it appears that the Dutchman was concerned about his rivals before the match.
According to the Manchester Evening News, security men used devices to check a meeting room at the Lowry Hotel before Van Gaal discussed tactics for the game.
The report adds that the Premier League giants have been checking hotels for more than a year after a bugging device was found in a meeting during the 2013-14 season.
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