Novak Djokovic is unsure he will ever play at the French Open again after losing to top-ranked Jannik Sinner in the semifinals.

“This could have been the last match ever I played here, so I don’t know. That’s why I was a bit more emotional even in the end,” Djokovic told reporters. “If this was the farewell match of the Roland Garros for me in my career, it was a wonderful one in terms of the atmosphere and what I got from the crowd.

Three-time champion Novak Djokovic kept up his quest for a record-breaking 25th Grand Slam title, battling past third seed Alexander Zverev 4-6 6-3 6-2 6-4 on Wednesday, to set up a French Open semi-final against top seed Jannik Sinner.