I hope this kind of question is allowed. In any case, I want to clarify that there is no intention for racism or political arguments, etc. It is just a sincere wonder from the anthropological point of view.

What is the nationality of the Azerbaijani players Mamedyarov and Radjabov?

Do they identify as Azerbaijanis, which is a Turkic nationality, or as Russians who happen to live in Azerbaijan? I think they speak Russian as native language.

Are they Russian Jews living in Azerbaijan? I think this is a possible, and at the same time, very complicated issue in anthropology.

Are they Azerbaijani Jews who just learned Russian as a second foreign language?