The incident happened in the first half at Stamford Bridge as Sterling went to retrieve the ball.

The Metropolitan Police says it is “aware of a video circulating online in which it is claimed racial abuse was allegedly directed at a player.”

In a statement, the force says “we will review the footage to determine whether any offences have been committed.”

Chelsea has been at the forefront of anti-racism campaigns.

The club says “we will investigate the matter and take the strongest possible action where necessary.”

Chelsea won 2-0.

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