Arsenal midfielder Granit Xhaka has reportedly been interviewed under caution by police following an allegation that he racially abused an airline staff member at Heathrow Airport on Monday night.
The incident is said to have occurred just over 24 hours after the 24-year-old was sent off during his team's 2-1 victory over Burnley in the Premier League.
A Metropolitan Police statement, quoted by Sky Sports News, read: "Police were called at 7.29pm on Monday, January 23 following an allegation that a member of staff had been racially abused at Heathrow Airport, Terminal Five.
"The allegation was made by a third party. Officers attended and spoke with a man in his 20s. He was not arrested. He voluntarily attended a west London police station where he was interviewed under caution. Enquires continue."
The report adds that the Switzerland international disputes the words he is alleged to have said, and insists that he did not speak directly to the member of staff.
Arsenal have declined to comment other than to say it is a private and police matter.