“I think he felt the Premier League is different and that he needs to build up that physical strength. He’s looking good. He’s still not lost his endurance and his movement, so that’s very good.
“Mason is a combination of age, because he is just filling out as a young boy, but the common denominator is the work they do with the fitness staff here. I’ve got some unbelievable staff.
“This club has done it with so many players, Cristiano [Ronaldo] was one of the prime examples of coming in as a kid and getting this physical development with the quality of staff that I’ve got.”