He may have
some Greek blood, but Greeks are Mediterranean. So half-Greek/half-Italian sounds a lot better than half-Rican/half-Italian.
And I got news for you. His Mom, who's a dynamite lady, probably isn't a hundred percent Italian herself.
But best guess is that he's 1/4 Italian, at best. But he's a great kid, a monster earner, and a stand up guy.