Authorities from the Polish city of Wroclaw have advised residents to limit travel as they prepare for an influx of football fans ahead of the UEFA Conference League final.
More than 70,000 supporters are expected to descend on the city in the coming days, as Chelsea take on Real Betis on Wednesday at the 42,000 capacity Wroclaw Stadium.
The Blues booked their place in the final by defeating Swedish side Djurgardens IF 5-1 on aggregate earlier this month.
The clash could also see Enzo Maresca claim silverware in his first season since arriving at Stamford Bridge from Leicester in the summer.