The 18 year-old finished runner-up to winner Ousmane Dembele of PSG.
And his father, Mounir Nasraoui, insists his son deserved to win the award of the former Barca winger.
He said on El Chiringuito: "I think this is the greatest harm, I wouldn't say theft, but moral harm caused to a human being, because I believe that Lamine Yamal is by far the best player in the world, and by far the one who makes a lot of difference.
"Not because he's my son, but because he's the best player in the world. I think there is no rival, Lamine Yamal is Lamine Yamal. It must be said that something very strange has happened here. Greetings to all of Spain, and next year it will be Spanish ball."
