The talented American announced the news, and her plans to return to tennis after becoming a mother.
The rest of this week's Cologne tournament will be played without fans.
After four resignations. the ATP player council has filled the vacancies and made Kevin Anderson its president.
World No. 29 to play UTS Antwerp this weekend.
The 33-year-old Italian has been removed from the Forte Village Sardegna draw.
"Receiving so many messages of support on social media and directly to my mobile has helped me, without a doubt," says Rafael Nadal.
The Tennis Channel is going all in on the ATP Tour, as ESPN backs away.
