The proxy system is not smooth for players in professional leagues in Korea. In Korea Professional Baseball League players have been allowed only when the player face-to-face contract agreement. Recent player accepted the contract and, by proxy, but a representative system, which does not yet agreed upon a specific implementation timing. Korea Professional Basketball League has agents based in accordance with the provisions Basketball League Covenant. However, there is no agent registration process is difficult to implementation the institutions. In Korea Professional Volleyball League, in principle, face-to-face contracts in Article 70, paragraph 2 Volleyball League and Covenant, the team also does not recognize the player representative institutions. Baseball, basketball and volleyball, unlike Korea Professional Football League player agent system is already being implemented. Korea Professional Football League, the official agent recognized by the FIFA Agent Regulations. And the introduction of new intermediary registration system is the last in April 2015, but it is difficult to be optimistic about the future situation. Professional sports league in the United States have recognition the players union and the rights of players increased by allowing agents activities, identify various values of the players and the players and the market economy are formed, which can be exchanged compared with South Korea. In fact, the body of a professional athlete is the product itself. A highly technic worth addition to the training of professional athletes has increased in many respects. Analysis of these basic market conditions and negotiation techniques through a variety of value creation that professional players in the market to enhance the economic value. When professional players have to approach the process professionally using a delegated contract rights of professional athletes it can be much more protected. Every professional sports league in Korea there is a draft system, a variety of ways, such as freedom starter system or a trade system, which check to see whether there is a need to protect the rights of professional players. It will be enhanced by improving the legal status of a professional athlete athletes proxy institutions in order to enhance the economic value of the player.