Ronaldo made headlines once again after the side's victory over Genoa when he took of his jersey and threw it on the floor.
While there were reports claiming he gave the shirt to a ball who had requested, former Juventus striker Luca Toni has not pleased with the Portuguese's attitude.
"He's very important for Juventus," The Italian World Cup winner told Tuttosport.
"He's the leading goalscorer, he scored a lot. But I'm not impressed by some of his attitude towards the group. I think back to when I was playing.
"I was very selfish and if I didn't score, I still remained on the pitch to celebrate anyway. I endured the disappointment.
"Regardless of whether it was a coincidence or not, you don't throw the shirt. Sometimes a great champion has to lead by example."
