Injury while playing often happens, but it can be treated and prevented easily by the athletes themselves. There may be instances wherein another person is responsible for the injury, whether by accident or intentional (especially in group games). The following are the most common sports injuries that athletes may experience.

· Achilles Tendonitis – Achilles tendon is the largest tendon in the body which connects the calf and the soleus muscles to the heel. The calf muscles cross the knee, ankle, and subtalar joints. Weak muscles and frequent use contribute to the Achilles tendon injury or rupture. The injury is characterized by a popping sound.

· Ankle sprain – Ankle sprain occurs when the weak ligaments surrounding the ankle joint tears after it gets twisted, rolled outside or turned inward. This usually happens while running or jumping on uneven surfaces. The outside will swell up or turn black and blue, with throbbing pain. The severity of sprains may be mild (minor tear without laxity), moderate (tear with some laxity) or severe (complete tear).

· Groin pull – This is a rupture of the inner thigh muscle (abductors), which runs from the pelvis to the knee. Tears are characterized by sudden, acute pain, accompanied by swelling or bruising. Pushing off in a side-to-side motion or sudden change in direction while running cause strain to the groin.

· Hamstring strain – The hamstring consists of three muscles found in the back of the thigh which may be strained when overstretched and torn. Hurdling or falling forward while waterskiing are the common causes of a hamstring strain. This is characterized by a sharp pain in the back of the thigh while running or walking.

· Knee injury – The two most common knee injuries are ACL and Patellofemoral syndrome.

· ACL (Anterior cruciate ligament) connects the leg bone to the knee. The injury may be caused by overstretching when changing direction rapidly, twisting without moving the feet, or missing a landing from a jump.

· Patellofemoral syndrome results from repetitive movement of the kneecap (patella) against the thigh bone (femur). This damages the tissue under the kneecap.

· Tennis elbow – Also known as epicondylitis, it is a cumulative trauma injury that results from repeated use of the muscles of the arm and forearm that may cause tears and inflammation to the tendons. It usually involves the outside of the elbow. Tennis players and golfers are susceptible to this injury. Pain can be felt from the elbow down to the forearm.