Referees' association says Mark Clattenburg will co-operate with any investigation into his conduct

Referee Mark Clattenburg will co-operate with any investigation into his conduct during Sunday's tempestuous match between Chelsea and Manchester United at Stamford Bridge.

Chelsea have accused Clattenberg of using "inappropriate language" towards two of their players during United's 3-2 win and will be making a formal complaint to the FA.
Professional Game Match Officials (PGMO), the body which represents Premier League referees, has released a statement which reads: "PGMO is aware of the allegations and they are being treated with the utmost seriousness.
"Mark will co-operate fully and welcomes the opportunity for the facts to be established.
"No further comment will be made until this matter has been properly investigated."

Clattenburg was at the centre of events on Sunday, sending off Branislav Ivanovic and Fernando Torres with the score at 2-2.
And a Chelsea spokesman said after the game: "We have lodged a complaint to the Premier League match delegate with regard to inappropriate language used by the referee and directed at two of our players in two separate incidents."
Chelsea midfielder John Obi Mikel is believed to be one of the players involved in the two incidents.
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