Now that the Boston Celtics have clinched a playoff spot, they're expected to place an even higher premium on availability.

Four-time All-Star Celtics small forward Jaylen Brown is considered questionable to play through a right knee posterior impingement. The 6-foot-6 University of California at Berkeley product ...

Impingement symptoms may be the result of rotator cuff pathology, shoulder instability, scapular dyskinesis or muscle dysfunction, biceps pathology, SLAP lesions and chronic stiffness of the posterior ...