Manchester United fans have been warned not to wear the club's colours when they are in Rostov, Russia, ahead of Thursday's Europa League tie.
United face FC Rostov in the first leg of their round-of-16 encounter this week, ahead of the second meeting back at Old Trafford on March 16, and the club are reportedly covering the cost of Russian visas for fans making the journey.
The Premier League club are concerned about the safety of their supporters, having issued a similar warning when they travelled to Ukrainian team Zorya Luhansk in December.