London - Wayne Rooney was warned by the Football Association on Monday after mouthing the words "12 men" into a television camera after Manchester United's 1-0 defeat to Chelsea. United were furious about John Terry's winner, arguing both that the free-kick from which it came should not have been given, and that Didier Drogba committed a foul as Frank Lampard delivered a cross.
Rooney was booked for his protests to referee Martin Atkinson immediately after the goal.
Midfielder Darren Fletcher, who conceded the critical free-kick, suggested he is being victimised after Arsenal manager Arsene Wenger criticised tactical fouling following his side's defeat to United earlier in the season.
"I think we are starting to see Mr Wenger's comments starting to influence referees, which is a shame really," he said.
"It was clearly not a foul. I knew at the time and I have watched it again on the replay.
"I back-heeled the ball and (Ashley) Cole just jumps up in the air, and the ref gives a foul.
"Referees are the only people in the game you can't criticise. Managers and players can be criticised, but you can't criticise referees.
"Now we have to raise our game and ensure these decisions are not affecting the game."
