Bruce Lee acknowledged that while in Hong Kong, he saw Cheung as one of the best fighters. Bruce Lee was still young at the time and still developing as a martial artist. His exposure to fighters was few and far between. Cheung was not only his friend but also his si-hing, older Kung Fu Brother who often taught him some Wing Chun. Bruce showed him respect by naming Cheung as one of the best fighters, promoting not only his friend but Wing Chun as a legitimate martial art style.