Juventus captain Giorgio Chiellini has taken aim at Mario Balotelli in his autobiography, 'Io, Giorgio'

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Chiellini told La Repubblica: “I was really let down by two players and I confirm everything I wrote in the book. Balotelli is a negative person, with no respect for the group. During the Confederations Cup against Brazil in 2013, he didn't lend a helping hand for anything, he really did deserve a slap.

“Some people thought he was among the top five strikers in the world, but I never even considered him in the top 10 or 20.

“However, there was someone worse, Felipe Melo: really the worst of the worst," continued Chiellini.

“I cannot abide people who lack respect, those who always want to be contrarians. With him around, it was permanently likely to break out into a brawl. I told the directors that, too: he is a bad apple."