I will stop him to offened his firends and tell him o concetrate on match . and force him to play as it is part of sportsman ship
Confrontation is not the solution to this problem. However, if the situation calls for it, one has to take a stand for their wellbeing. Your brother has the potential to become a brilliant player, but he is not getting the chance to prove himself. Your brother can calmly and coolly ask his friend for the reason for excluding him from practice, in a way that his find don't feel offended. In this case, the code of conduct of your brother should be cautious, diplomatic and calm in all the situations regarding this matter.