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The Safin siblings, Marat and Dinara, stand as the pioneering brother-sister duo to conquer the summit of world tennis. Marat Safin ascended to the pinnacle of men's singles rankings, etching his name in history as a formidable force on the court. His sister, Dinara Safina, mirrored his success, reaching the zenith of women's singles rankings, cementing their legacy as a remarkable pair of tennis royalty.