London police say they will work with Chelsea and the Football Association after receiving a complaint about referee Mark Clattenburg.
The FA had initially received an official complaint from Chelsea about Clattenburg on Sunday, accusing the Premier League official of using inappropriate language on two instances during their game against Manchester United.
Reports have suggested that language used towards John Obi Mikel may have been racially charged and Metropolitan police have confirmed they will ‘consider any allegation that is made’.
Clattenburg will not officiate any games next weekend while he co-operates with the investigation.
The Society of Black Lawyers have also lodged a complaint with the policing authority to investigate whether a racially aggravated criminal offence has occurred.
A letter from chairman Peter Herbert to the Metropolitan Police 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 [Met Police] independently see if a racially-aggravated offence has occurred.”