Mahamed Diab was also a famous player for Zamalek and the Egyptian national team using the name "El Diba".
He took part of three Olympic Tournaments, twice as a player (1948, 1952) and once as an assistant referee (1976). It was Diba who scored all 4 goals in the first African Cup of Nations final won by Egypt against Ethiopia in 1957.
International referee from 1968 till 1976. He was in the final of the 1978 African Cup of nations, probably as an assistant.