Former Barcelona and Juventus full-back Gianluca Zambrotta has warned striker Luis Suarez about how the Uruguayan conducts himself on the field.

As the controversial forward prepares to make his first appearance for Barcelona against rivals Real Madrid this weekend, Italian veteran Zambrotta has issued a warning that any more controversy while performing in Catalan colours will not be tolerated.

"When you come to Barcelona, you join 'more than a club'," the 37-year-old told Goal.com.

"You have to follow a special code so, after what happened in the World Cup between him and [Giorgio] Chiellini, he has to improve his self-control.

"However, I am confident he will have no problem in settling at Barcelona."

Barcelona boss Luis Enrique confirmed that Suarez will make his debut this Saturday in El Clasico.