Bobby Orr and Cam Neely. Two Bruin greats who never realized their full potential due to career-ending injuries.
You can add Gord Kluzak to that mix, too. He was a can't-miss prospect drafted #1 overall out of the storied Notre Dame Prep School in Saskatchewan back in the early 1980s, but his career was cut short after a couple of serious knee injuries in his first few seasons.