Hamburg president Marcell Jansen is delighted seeing former teammate Heung-min Son succeed with Tottenham.

Jansen was in the squad when Son join HSV in 2010 and saw a youngster determined to make it to the top — with the right guidance.

He told The Sun: “We saw a man behind the fence who would throw the ball back when it went over. We all asked 'who is this man?' There were quite a lot of training sessions where he was there looking at what Sonny was doing. It turned out that it was his dad!

“We joked with him not to be nervous and to do a good job! It was very funny as we didn't know at first.

“You feel there is a very close connection to his family. It was a very good base and so strong and helped him."

Jansen also remarked: “His character is that he would give everything to football.

“My first impression of him was that he was smart. And you could really see in his eyes and his face that he loves playing football and nothing would ever change that.

“He was good every day and was always very positive. Then from the first training session that he had with the first-team you could see the talent.

"For every young player that is not from Germany it is a big step to play here and to make the next step."