Nick Kyrgios said he is “tired” and does not want to play tennis any more as he continues to recover from injury.
The 28-year-old Australian missed all four majors in 2023 because of wrist, knee and foot injuries.
On Saturday, Kyrgios said he will not take part in the Australian Open in January because of injury concerns.
Kyrgios enjoyed the best year of his career in 2022, reaching his first Grand Slam singles final at Wimbledon and a career-high of 11 in the world rankings.
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Kyrgios has played just one ATP Tour match this year, losing to China’s world number 64 Yibing Wu in Stuttgart in June.