PARIS, June 1 — Rafael Nadal edged a late-night classic against old rival Novak Djokovic in the early hours of Wednesday in four sets to reach his 15th French Open semi-final.

The 13-time Roland Garros champion won the pair’s 59th career meeting 6-2, 4-6, 6-2, 7-6 (7/4) after a four-hour-and-12-minute quarter-final on a raucous Court Philippe Chatrier.