Legal issues in Physical Education are very germane to sport and physical activity development. Consequently, Physical Education teachers should be involved in studying laws that relates to P.E in the course of their professional preparation. It is worth noting that today, people are becoming more aware of their rights under the law. This has further awakened the need to ensure that Physical Education teachers are made to know the legal implications of negligently caused injuries in P.E class and also fashion-out "preventive mentality" in respect of these injuries. Unfortunately, it has been discovered that sports law is not included in the curriculum of physical Education in Nigeria. When dealing with various types of Physical Education programmes, P.E. teachers must look to protect themselves from any tortuous liability. To be able to do this, they must be familiar with the scenerios in which they can be vulnerable to tortuous liability. Negligence is a tort that is often used to implicate P.E. teachers. It is very important that they understand the nuisances of tortuous liability and its relationship to P.E profession. They should also be aware of the legal defenses available to them if, despite all precautions, they are accused for negligence. The purpose of this study therefore is to discuss the concept of tortuous liability, what constitute negligence, sources of negligence in sport and the defense against negligence. This will reduce the possibility of there been liable.