If Novak Djokovic does complete the first calendar-year Grand Slam for a man since 1969 — and he is headed to the U.S. Open final, just one victory away — he, and everyone else, will remember one particularly pivotal, and epic, game along the way.

If Novak Djokovic does complete the first calendar-year Grand Slam for a man since 1969 — and he is headed to the U.S. Open final, just one victory away — he, and everyone else, will remember one particularly pivotal, and epic, game along the way.