Former world number one Naomi Osaka pulled out of Wimbledon on Saturday with an Achilles injury. "My Achilles still isn't right so I'll see you next time," the four-time Grand Slam winner posted on Twitter.

Osaka, 24, was already considering not playing over the ATP and WTA tours decision to strip Wimbledon of ranking points after the All England Club banned Russian and Belarusian players in response to the invasion of Ukraine.

Osaka's tweet, although not mentioning Wimbledon specifically, was accompanied by a photo of herself on a grass court, and an emoji of a blade of grass.

The Japanese player first suffered the Achilles problem in her opening match in Madrid in May, the injury forcing her to pull out of the following Italian Open.

This month she posted a video of a training exercise on social media accompanied by the caption; "Here's me running on a underwater treadmill because my Achilles is being stubborn still I must be aging or something."

Osaka's name had appeared on the singles entry list for Wimbledon when it was released last week, but she has not featured in any of the grass-court warm-up events.

Osaka, who has never got beyond the third round at the All England Club, raised the possibility of missing the grass court Grand Slam after her first round loss at last month's French Open.

"I'm leaning more towards not playing given the current circumstances. I'm the type of player that gets motivated by seeing my ranking go up," she said.

"I feel like if I play Wimbledon without points, it's more like an exhibition," she continued.

"The intention of this measure was good, but the execution is all over the place."

Osaka's withdrawal follows that of former Wimbledon finalist Eugenie Bouchard who pulled out of the season's third Grand Slam on Friday.

The Canadian said the lack of world rankings points didn't fit with her plans to manage her return from injury.

Both players' names were absent from an updated players' list.

Osaka made it to the third round twice, in 2017 and 2018, with her last appearance at the tournament in 2019.