Arsenal midfielder Granit Xhaka has been interviewed under caution by police following an allegation he racially abused an airline staff member at Heathrow.
Xhaka, is believed to have been with a friend who had visited him in London.
It is at this point that the racial abuse is alleged to have occurred.
Arsenal have declined to comment other than to say it is a private matter that is now in the hands of the police.
Meanwhile, Arsenal will play Watford at 7.45am next Wednesday in the Premier League.
