If Somalia had a team I'd represent Somalia, if not Canada. However my situation isn't the same as Pogba's, Canada hasn't colonised Somalia.
As for Islam in Africa, the spread of Islam has started on the Horn of Africa, then worked it's way up north, and down the coast line, with the Zanzibar Islands etc. Africans embraced Islam way before the masses in the Middle East, the first converts of Islam outside of the ones close to Prophet Muhammed (pbuh) and in Mecca, were the Africans. The first Muslims seeked refuge in Ethiopia, the Arabs sent mercenaries after them, the Ethiopian king shielded the Quran. Basically, if it weren't for that Islam would have probably never spread.
The slave trade also, started with the Muslims, it was ok to enslave the ones that did not embrace the faith, and after the fall of Sudan, Islam just went hard and spread super fast, many converted due to political reasons to save themselves.
Several centuries later, the Europeans came along, with the vast majority of the African kingdoms on one knee, and slavery was a real market, so they went on and dealt the finishing blow which was the transatlantic slave trade, which was very pale in comparison of the trans-saharan slave trade.