Mato Mandzukic spoke to Tuttosport today about his son's success.
He revealed: "When Mario was a child he claimed, all serious, that he would become a great player and in the family we did not take him too seriously.
"We were wrong, he had a very clear life program from the beginning. We were the ones who did not realise how convinced he was, he is a winner, he knows no other goal than his success.
"I'm not surprised that he immediately found a feeling with Cristiano Ronaldo."