Football is the most popular national sport of Egypt. The Cairo Derby is one of the fiercest derbies in Africa, and the BBC picked it as one of the 7 toughest derbies in the world. Al Ahly is the most successful club of the 20th century in the African continent according to CAF, closely followed by their rivals Zamalek SC. Al Ahly was named in 2000 by the Confederation of African Football as the "African Club of the Century". With twenty titles, Al Ahly is currently the world's most successful club in terms of international trophies, surpassing Italy's A.C. Milan and Argentina's Boca Juniors, both having eighteen.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the most popular sport in Egypt?
Football