Paris 2024: Novak Djokovic reaches semi-finals amid knee injury concerns

Novak Djokovic will seek a further medical assessment of his knee after requiring on-court treatment during his victory over Stefanos Tsitsipas in his Olympic singles quarter-final in Paris.

The 37-year-old beat Tsitsipas 6-3 7-6 (3) to set up a semi-final meeting with Italy's Lorenzo Musetti tomorrow, but the 24-time grand slam winner is uncertain if he will be fully fit for action after taking a medical time out while trailing in the second set.

Djokovic damaged his knee when playing in the French Open at Roland Garros in June, subsequently undergoing surgery on a torn meniscus, before returning to action at Wimbledon where he lost in the final to Carlos Alcaraz.

He said: "I’m concerned about the state of the knee. I cannot give you exact information, because I don’t have it. I have to go and examine the knee now with my physio and with the medical staff of the tournament. And then let’s see."

Iga Swiatek’s 25-match winning run at Roland Garros was ended by Zheng Qinwen in a huge upset.

Swiatek has dominated on the Parisian clay, winning four French Open titles in the last five years and three in a row, but the best she can now hope for is a bronze medal after falling to a 6-2 7-5 defeat.

The Pole led 4-0 in the second set as she appeared to have turned the match around, but China’s Zheng won four games in a row and eventually clinched victory against a frustrated Swiatek.

It is the world number one’s first loss at Roland Garros since she was beaten by Maria Sakkari in the quarter-finals of the French Open in 2021.

Swiatek did not shake the umpire’s hand at the end of the match and broke down in tears during a TV interview before declining to speak to written journalists.

Australian Open finalist Zheng, meanwhile, becomes the