Sports injuries are a common occurrence in many sports, and sprains are one of the most common types. Sprains occur when ligaments are stretched or torn, usually due to a sudden twist or turn of the joint. Sprains can range from mild to severe, and can cause pain, swelling, and difficulty moving the affected joint. Treatment for sprains typically involves rest, ice, compression, and elevation of the affected area. In more severe cases, surgery may be necessary.