Local police have warned any travelling Chelsea fans to avoid wearing club colours in Warsaw for their Conference League quarter final clash on Thursday.
The Blues travel to the Polish capital on Thursday evening in their bid to secure silverware in Enzo Maresca's first season at the club, in a competition they are heavy favourites to win.
Their quarter-final clash takes them to Poland, where a hostile environment is expected for the club, judging by warnings from both Chelsea and the Warsaw police.
Chelsea have warned fans against sharing the location of the ticket pick-up point in Warsaw with anyone outside of fellow away stand ticket holders.