After a mixed first season in England, Son has shone in 2016-17 – scoring five goals in seven matches.
And as Son finally shows his true potential, the former Hamburg man has credited ex-team-mates Ruud van Nistelrooy and Rafael van der Vaart for his success.
“Ruud van Nistelrooy helped me a lot. He saw my first training session and he talked to me,” Son said. “He told me I was a good player. He gave me confidence and I want to thank him for that. We had a really good team and were successful for a time with him.
“Also Rafael van der Vaart came and he helped me. He told me more about English football and how tough it was. I was only young. I listened to him and tried to learn from what he was saying.”