~snip~
Yes, after all, he cannot be called a real professional. Maybe he was one until this moment, but the fact of the matter is that a true professional is completely tested by time and the most difficult situations, after which he managed to survive, and in some even emerged victorious. After all, at a common table everyone is a rival, and even if it were filled with professional players, there will still be only one winner. They can even play very well and not make mistakes, in which case luck will decide who to put in first place. Still, they prefer to hunt for weak players and not get involved in difficulties, unless of course these weak players piss them off)
Yes, perhaps he is still a professional gambler with all his gambling abilities. But he must be able to accept that there are beginner gamblers who can beat him at gambling so that he can feel that perhaps his gambling abilities have decreased so he needs to learn more to improve his abilities. As a professional gambler, he should be able to control himself well and not be provoked by his emotions, especially if a novice gambler beats him. It is natural for him to lose control of himself while gambling, especially because a novice gambler has beaten him.