This past Sunday, Alexander Zverev won his first major title. On the surface, the 29-year-old's Roland-Garros victory is the story of a player who, after roughly a decade of high expectations, accomplished the signature feat in his sport while benefiting from injuries and early upsets that removed the biggest obstacles in the men's bracket from his path. Perhaps it's the story of an elite athlete succeeding despite a childhood type-1 diabetes di…