Introduction: Every year the number of accidents that occur in the environment sports or outside of it and are looking for athletes breaking criminal laws they are accused, is added. Violence in the area of sports, Familiar topics to any spectator sports (Thornton, 2011). lots of famous view of taking risks are different sports (Aghaei Nia, 2010).
Methodology: Methodology in legal researches are based on description and explanation of data and also analysis and justifications. However direct observation has a great role in sport law, so in this research in addition to use the traditional literature studies and using logical rules to describe and analysis of the different issues, direct observation(Researcher was present in court and cases) is also used.
Result: Referral practices in cases involving violence in sports: satisfaction and self-defense (Shabani Moghadam, 2014).
Defend practices based on satisfaction:
 Natural emphasis on Sport violence.
 Review the rules of the game for defense -based satisfaction.
 The severity of injury as a solution for defense-based satisfaction.
 review Predictability and conventional of action in tort cases involving.
Defend practices based on defense self-defense:
 Proving that the force used by the non-striker's less of a force is applied against him.
 Non striker proves that the risk of severe bodily injury,was definitive and certain.
 Attacker can prove that at the time of operation, had control over mind and their behavior, the punishment of acquittal.
Discussion: Overall, in cases of violence in sports, two categories defense based on consensual and self-defense can be used. The definition of violence in sports (especially battery and wounding), is much more difficult in violence of Nonsports environments. Therefore in some cases can be consent as a defense in cases of battery and wounding used in sports.The self-defense, When the the risk of injury, is imminent and the use of force to prevent danger is necessary, Non invasive in a amount of rough treatment may apply reasonable force against an attacker.