Manchester United could be in hot water over their reaction to Sunday's Community Shield defeat to Chelsea.

The Daily Mail says the Football Association are scrutinising Manchester United's reaction to Frank Lampard's controversial Community Shield goal in what is proving to be an instant test of their latest attempt to protect officials from intimidation.

Patrice Evra, Wayne Rooney, Darren Fletcher and Antonio Valencia were among several United players who protested noisily to referee Chris Foy about his decision to play on when Michael Ballack blocked Evra with a body check before Lampard's strike.

FA rules state clubs can be charged with failing to control their players if "three or more" players approach the referee "in a confrontational manner".

A decision can be expected today and although it seems unlikely that United will be formally charged, a letter may be sent to Old Trafford reminding them of their responsibilities.