He told Voetbal International: "I saw him a bit like my little brother. Occasionally I helped him. I did say that he had to win more tackles, for example.
"From what I've seen, he's been certainly the best man on the field. He naturally has a rather quiet character."
Dad Tony also says: "Mason could've returned to England last winter to be loaned again. Just at that moment Mason proved from which wood he was cut. He did not want to return himself. Mason wanted to prove that he was good enough for Vitesse."