Rod Laver
Born August 9, 1938 · 88 years old
two Grand Slams, the arena named after him
There is a stadium named after him, which is the kind of honor people posthumously hand out. They handed it out early, and he is still here to visit it.
88, still the only man to win the calendar Grand Slam twice.
Confirmed alive as of September 23, 2026 · source: Wikidata