A sports contract is a contract its which subject is directly or indirectly related to sporting affairs, whether the subject matter of the contract is directly exercising the sports activities or affairs that are inevitable for conducting the sports activity. The Professional Player’s Transfer Contract is of the first type. The formation and discharge of this contract is subjected to special international and national regulations which differentiates it from the general rules of the other contracts. This Contract cannot be unilaterally terminated during the course of a season. But discharge with five types and the player will be considered as a free player after the termination of the contract and he/she can sign a contract with another club. 1-On expiry of the term of the contract -2-By mutual agreement- 3-Termination with just cause-4- Termination with sporting just cause -5- Termination without just cause. By reaching the end of the term, the contract is deemed to be terminated automatically and it can only be extended by mutual agreement. Cancellation on agreement means that, although the term of the contract has not been ended, the parties can cancel it by agreement, this is like the case where the term of the contract is terminated. Sports contract may be terminated by either party without consequences of any kind (either payment of compensation or imposition of sporting sanctions) where there is just cause. Defamation or intellectual damage, doping, bribe, collusion, anti-cultural and racist acts, non-participation in club trainings and official competitions, non-payment of financial and non-financial rights of the player, and the player's exclusion from training are the cases that can be examples of justified reason. The justified reason is referable by the club and the player. Termination with sporting just cause. An established professional who has, in the course of the season, appeared in fewer than ten percent of the official matches in which his club has been involved may terminate his contract prematurely on the ground of sporting just cause. Due consideration shall be given to the player’s circumstances in the appraisal of such cases. The existence of a sporting just cause shall be established on a caseby-case basis. In such a case, sporting sanctions shall not be imposed, though compensation may be payable. The criterion for the contract cancellation's being justified or unjustified and the claim for the damage resulting from the breach of the contract in each case is the conventional conduct of the parties, not merely the provisions of the contract. Therefore, if the behavior of the club or the player in the contract cancellation is like a normal human's behavior, his cancellation will be deemed justified and otherwise unjustified. Responsibility due to breach of contract and unilaterally termination of contract without just cause (case by case) commitment of club or Player in breach (jointly and severally liable) to pay contractual or legal compensation (according to objective criteria), In addition interest rate (expiry of the fixed time limit) transfer ban, sporting sanctions for player on playing in official matches, deduction of points at domestic league; relegation to a lower division, and etc. That applied by Disciplinary Committee. In the event of contractual obligations breach, if the nationality of the player and the club is different, the FIFA Dispute Resolution Chamber and the International Court of Arbitration (in international level), and otherwise, the Committee on the Status of Players, and the Appeals Committee of the Football Association (in Iran) are the references to deal with the claims and contractual disputes between the clubs and professional players.

Keywords: Professional Player’s Transfer Contract- Termination of Contract- Breach of contract- Just cause- FIFA Regulations.