Most sports injuries are due to either traumatic injury or overuse of muscles or joints.
Many sports injuries can be prevented with proper conditioning and training, wearing appropriate protective gear, and using proper equipment. The result will be pain, swelling, and discoloration. More serious contusions may need to be examined by a physician. A sprain is an injury to a ligament and is often caused by a wrench or twist. Sprains often affect the ankles, knees, or wrists.