During the Greek War of Independence, the Ottoman Sultan apparently became desperate and called for military assistance from his Viceroy in Egypt, Muhammed Ali. Ali promised aid in exchange for Crete, Cyprus as well as making his adopted son Ibrahim Pasha, Pasha of the Peloponnese. The Sultan accepted the offer in OTL and there was that the Ottoman-Egyptian invasion of the Mani peninsula. What if the Sultan refused the offer and went to deal with the Greek revolutionaries himself. What happens there?