Thank you for the opportunity to help you with your question!
Individuals can be given consent to possibly serious bodily injury as a result of a participation of a Sporting event. Players enter contracts that show that they willing to participate. No one should be forced to participate in such an event.
There are limits set to the consent. A person should agree to follow the standards of the game. Consents to involve in such sporting events should, however, only accept sane people that understand and interpret the set standards correctly. Fitness tests should also be carried out in such games too.
Please let me know if you need any clarification. I'm always happy to answer your questions.