Sports injuries are common among athletes and can range from minor to severe. A STRAIN is an injury to a muscle or tendon caused by overstretching or tearing. It is usually caused by sudden, forceful, or repetitive movements. A FRACTURE is a break in a bone caused by trauma or excessive force. It can be caused by a fall, direct blow, or twisting motion. Both strains and fractures can cause pain, swelling, and difficulty moving the affected area.