Hugo Martins tries on a Mongolian hat. [Photo by Yangteng Geer/Xinhua]

"At the first impression, I felt that he was particularly fierce and severe, so I didn't like him," a trainee said. Looking at the football class that was far from the happy interest class, many children chose not to stay after the trial class. In life, he is the fun-loving Portuguese, but he "changes his face" as soon as he gets on the court. Martin's focused and strict attitude seems to be incompatible with the concept of "happy football". The strict training requirement makes many students and parents feel pressured.

"Happy training is meaningless, what can children learn from it? Happy training, everyone is happy, parents are also happy, but the children ultimately will not master professional football skills. It is not my style to teach perfunctorily," He said.