Looks like Boston Celtics Center, Shaquille O'Neal has another injury. Years ago he had surgery on his big toe joint to clean up a lot of his cartilage. Now Doctors are saying he has tendinitis or even tendinosis of his Achilles tendon. Ok so whats the difference? Tendinitis is inflammation of a tendon. Tendinosis is an abnormal condition of a tendon. It can also be caused from an overuse syndrome and there are different types of healing cells that occur with tendinosis. Anti-inflammatories may not work with tendinosis conditions. With both conditions, if he is too active, he may rupture the tendon. Currently, he is wearing a Cam Boot to help offload the area. Stay tuned for updates on his progress.