Former Barcelona star Bartra recalled working with Messi in an interview with Travelling with Chester.

Baltra: We sat very close in the locker room. I once saw Messi annoyed in the locker room after missing a penalty kick. He grabbed his jersey and kept saying, 'What did I do, what did I do'. But then he was able to cheer up in the second half and dominate the court with the best performance.

This is why he became the best player. Besides technology, the most important thing is how to cheer up when encountering problems, how to deal with what happened, and solve the problem. To do this, you need to be very strong.