Characterized by pain in the back side of the elbow and forearm. Tennis elbow is inflammation of the tendons that join the forearm muscles to the outside of the elbow. The forearm muscles and tendons become damaged from overuse. This leads to pain and tenderness on the outside of the elbow. Not surprisingly, playing tennis or other racquet sports can cause this condition, but several other sports and activities requiring repetitive and vigorous use of the forearm muscles can also put you at risk. We tend to see this often in golf, although this is NOT Golfer’s elbow.