Everton boss Roberto Martinez expects to experience something new against Liverpool on Saturday.
In a previous role as Swansea manager he experienced the ferocity of clashes against Cardiff, but anticipates something on a different level this weekend.
When asked about past derby experiences at his pre-match press conference, Martinez said: "I think probably the south Wales derby would be one that is full of passion and I would consider an out-and-out derby.
"There are many local clashes where you can see real passion but I don't think anything has been anywhere near what I am expecting on Saturday.
"I have heard many stories, especially from the kit room, about the history of the club and I know the derby on Merseyside is quite unique and quite special.
"I don't think it should be compared to any other in world football.
"There is that feeling of having the red and the blue spread out in the city, and not just in the city, spread out in families and in the workplace.
"That makes it a really intense topic of conversation and is part of the daily lives of every football fan in the city.
"That has made it, over the years, full of passion and history. It is quite a unique football fixture because of the meaning that comes with it."
