If a Korean player is willing to enter the leagues in other countries, especially Europe, it is necessary for him to go through the transfer procedure. Therefore, when a Korean sports agent and other foreign agents collude, with regards to fees, which may influence the Korean market, the problem whether this practice can be a subject-matter under Korean competition law is, in practice, an important issue. In the sports industry, the question whether it is possible to apply competition law in the sports industry should be scrutinized on a case-by-case basis. In particular, in order to apply competition law, it is very crucial to decide whether the subject is an enterprise or a business association. Moreover, it is also necessary to examine whether there is an agreement to satisfy the element of unfair collusive practice provisions. In addition, if the party is a foreign enterprise and its agreement is made in foreign jurisdiction, which has an effect on the Korean market through providing services, this activity can influence on the Korean sports players and teams. Especially when the foreign enterprises have an object of anti-competitive effect, the Korean competition law should be applied to the case. However, it is possible for the colluding parties to receive benefits from the leniency program which reduces the penalties and surcharges. There is no doubt that the sports market needs fair competition compared with other sectors. Of course, we cannot expect the same level of fairness in the market such as in the sports games, but at least, where there is any anti-competitive practice in the market, the law should enforce. Lastly, the author expects developments in international transactions in sports.