Kareem Abdul-Jabbar credits actor and martial artist Bruce Lee for helping him remain relatively injury-free during his 20-year NBA career. The basketball legend spoke about training with Lee during a Friday appearance on “SportsCenter.” “Bruce always emphasized the effectiveness of stretching,” Abdul-Jabbar told’ ESPN’s Scott Van Pelt. “So before we worked out, we stretched all the time. And that was it. I took that to another level by studying yoga and being able to advance as a yoga student, and that really was the best preventative maintenance that I could have been doing in the offseason.”