Massimiliano Allegri says it will be "practically impossible" for Juventus to man-mark Barcelona's Lionel Messi in the Champions League final on Saturday.

Messi scored a brilliant goal on Saturday in the Copa del Rey, escaping a three-man trap on the sideline before running past a fourth defender.

"What did I feel when I saw Messi's goal against Athletic? What he did on Saturday was exceptional," Allegri said.

Giorgio Chiellini, however, said Messi would find scoring such a goal difficult against Serie A defenders.

"Messi would not be able to score goals like that in Italy," Chiellini said. "At the moment he is the god of football. The offensive play in Spain is great but we defend better here in Italy."

"Man-to-man marking of Messi while he's on the move is practically impossible. We need to have conviction and anticipate his moves," said Allegri.

Allegri also said Juventus were preparing for the talent of Andres Iniesta in midfield.

"We're aware of the quality of Messi, Neymar and Suarez and especially that of Iniesta," Allegri said.

He added: "We know that Barca are a quality team and play a brand of football that is unique. We want to show and prove to the rest that we can compete against this Barcelona team. Messi and Neymar play in a different way to any other forward pairing in the world. We need to play a tight game."