As someone already noted,his footwork and balance really were about as perfect as you could get.I've always felt those were his strongest attributes as a fighter as opposed to his power,in which I've always felt he was grossly overrated(at least in terms of actual one-punch knockout power).
1972 Summer Olympics (51 Kg) Flyweight Division (112 lbs.) Egypt's Mohammed Selim out-pointed Wilfredo Gomez (4-1) in the 'Second Round' Wilfredo was '2-months' shy of 16.