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Kei Nishikori will have a later start than expected to his 2020 campaign after withdrawing from the ATP Cup.

Nishikori Withdraws From ATP Cup

Nishioka takes over top singles spot for Team Japan

Team Japan has been dealt a blow to its ATP Cup lineup after Kei Nishikori announced his withdrawal on Monday from the inaugural event.

“Today, together with my team, we have made this decision as I am still not 100 percent ready to compete at the highest level,” Nishikori said in a statement.

Nishikori has not competed since this year’s US Open due to a right elbow injury that he underwent surgery for in October. Yoshihito Nishioka will replace him as the top-ranked player in Japan's lineup. Yasutaka Uchiyama also withdrew from the event earlier this week and was replaced by Toshihide Matsui.

Japan takes on Spain, Georgia and Uruguay in Group B action in Perth.

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