Juventus captain Giorgio Chiellini has a warning for former teammate Andrea Pirlo over his coaching ambitions.

Chiellini says Pirlo will have to temper his expectations of his players when leading them.

He explained in his new book: “It's one thing to see Pirlo from afar or on TV, its another is to follow him on the pitch.

“He broadens your horizons, he is a Martian who makes everything special.

"Of course, as a coach Andrea will have to return to Earth because he will not be able to expect his players to have eyes behind their heads as he did."