Abstract
The professional contract is a contract under which the player undertakes to provide the contracted club within a specified period of time all his physical abilities, and most likely is to adapt this contract as a contract of employment, and its characteristics are: satisfaction, mandatory, reciprocity and continuity. It turns out that among the mechanisms of contractual stability in the field of international sports professionalism what is original as the rule of the contract the law of contractors and what is reserves such as renegotiation and the penalty condition and the concept of the principle of the privacy of sport, as shown the cases heard by the International Court of Arbitration for Sports the role of that court in maintaining the contractual stability of the contract of professional sports, where It firmly opposes the unlawful termination of that contract and acts as a strict circumstance for the protected period on its own, decides on factors affecting the value of compensation, and the International Court of Arbitration for Sport, in the light of the concept of sports privacy, supports that there is a need to settle sports disputes through the application of special sports regulations only, regardless of whether the parties have agreed to apply another law. The study recommends the need to name the contract of professional sports in general and international in particular in the law of sports, and to put in place provisions to ensure the stability of this contract and prevent the obstacles to that stability. The importance of including professional regulations in order to regulate the requirement to terminate a professional contract by individual will takes into account the period protected by international federations