Poland, Łódz city. 05.03.2021
The night before the derby match in Łódź, Widzew ambush ŁKS fans who were warming up in one of their districts. Widzew hooligans arrived at the place, where ŁKS fans were, in a large delivery truck and in one moment they jumped out of the vehicle and attacked a local rival from ŁKS. Fast action and Widzew wins.
The day before the attack (04.03.2021), Widzew also broke into the ŁKS stadium, and changed the letters on the seats from ŁKS Łódz to RTS Łódz (Widzew)
ŁKS fans, after a short time, change the letters, as they were before, to ŁKS Łódz.