Manchester City boss Pep Guardiola is wary of Club World Cup final opponents Fluminense.
City meet Flu in Jeddah as favourites.
But Guardiola warned: "The way they play, we've never faced, never.
"I love it. I love the build-up. I love how they associate between each other.
"They play a typical Brazil style from the 1970s, '80s, early '90s - until 1994, when they won the World Cup in the United States.
"We will have to impose our rhythm and our positional game as best as possible and do a good performance, because we know without it, it will be so difficult to win the final."