Nick Kyrgios won't play singles again in 2022; Kei Nishikori delays return

HIGHLIGHTS: Kyrgios' last win of the season, against Kamil Majchrzak in Tokyo.

Kyrgios withdrew from the ATP 500 tournament in Tokyo two weeks ago with a knee problem, saying it was the "smart" choice given he still had two more tournaments—Basel and the Paris Masters—on his schedule.

But the 27-year-old Australian has now withdrawn from Basel and also Bercy, where he would have been competing for the first time in his career. That removes him from contention for a spot in the ATP Finals singles field, though he and compatriot Thanasi Kokkinakis could qualify for the doubles event. The Aussie pairing is currently in the seventh spot in the Race, having won the Australian Open doubles title.

Kyrgios has not released any statement regarding his withdrawals, or whether he still plans to play in doubles at the ATP Finals should he qualify. He reached the final of Wimbledon, but did not receive any ranking points following the ATP Tour's dispute with the Grand Slam event about its ban Russian and Belarusian players.

Meanwhile, Kei Nishikori, who underwent arthroscopic hip surgery following the Australian Open, was to have played two Canadian challengers next month in Calgary and Drummondville. But according to his team, the 32-year-old has had a "serious ankle sprain" and will not be competing.

But Nishikori, who reached the final of the 2014 US Open, indicated that he is not considering retirement.

"I hope to be back in the new year, and look forward to playing again in Canada in the future," he said in a statement released by the Calgary Challenger.

Nichikori is currently unranked on the ATP Tour.