Chelsea have alleged that Clattenburg called John Obi Mikel a "monkey" and Mata a "Spanish t**t" during the stormy finale at Stamford Bridge. But Oriol Romeu, who was an unused Chelsea substitute, has revealed that Mata did not hear the allegated racist remarks.
The FA has since launched an official investigation with “three or four
Chelsea players” ready to act as witnesses in support of the complaint while
Clattenburg is adamant he did nothing wrong and
“Neither Juan nor Fernando [Torres] told me they heard it because from what I have understood they didn’t hear anything,” said Romeu. “It was someone else who heard it, but not directly at them. It was another player who heard it and that is what they told me.
“I didn’t hear anything as I left quickly to go home but after talking to Juan he told me there was some problem and he had to stay.
“I only know Chelsea made a complaint and I think there could really be a problem if what Chelsea players say happened really happened.
"If there was really a racist comment or something said against a Spanish player this will be serious. We know in this country people are very vigilant about these issues."
Chelsea, Clattenburg and the FA are now waiting to discover whether police will investigate the allegations.
Peter Herbert, the man behind the mooted black players' breakaway union, sent a letter to the Metropolitan Police Service (MPS), which read: "The Society of Black Lawyers wishes to record the incident that took place at Chelsea FC.
"Our information is that racist remarks were directed at John Mikel Obi and at Juan Mata. If so, that is wholly unacceptable in any circumstances.
"Although this matter may be investigated by the FA, it is appropriate that the MPS independently see if a racially-aggravated offence has occurred."
The police confirmed they had received what they described as a "complaint" and were considering it.
They said in a statement: "On the afternoon of 29 October, the Metropolitan Police received a complaint relating to the Chelsea v Man Utd match on 28 October.
"This is now being considered. Officers from Hammersmith & Fulham borough have been in contact with Chelsea Football Club today regarding the widely-reported club referral of the referee's behaviour to the Football Association.
"At this time, the Metropolitan Police has not received any complaint from either Chelsea Football Club or the Football Association.
"We will work in partnership with Chelsea Football Club and the Football Association in order to consider any allegation that is made in relation to the reported events."