 Since the end of Cheung's stint at Blackpool in 1962, he remains the first and, thus far, only Hong Kong-born football player to have ever played for a top-flight European club.He remains one of only two HongKongers to have played professional football in England, along with Dai Wai-tsun who made his debut in 2017.Cheung Chi Doy's father, Chang King Hai (), and brother Cheung Chi Wai were also footballers.