Aryna Sabalenka’s first tournament since testing positive for the coronavirus ended after only two matches.

Looking ahead to Novak Djokovic’s return; year-end races to new places—Turin and Guadalajara; and the return of Davis Cup and Billie Jean King Cup, two old team events that could feel new again.

"The play was very nervous, and I would have gone back to these matches to worry less," the Belarusian said regarding this year's Wimbledon and US Open exits.

The fifth competitor to punch her ticket to Guadalajara, Sakkari's Kremlin Cup campaign continues against Simona Halep Friday.

The best of his generation never to win a major title, Nalbandian is the only man to defeat Novak Djokovic, Roger Federer and Rafael Nadal over the course of one tournament.

No man in the Open era has won more titles, or played more singles finals than Connors.

The world No. 2 played a match for the first time since reaching the US Open semifinals and won Wednesday in Moscow.

The former world No. 1 outlasted an inspired performance from the surging American in three tiebreak sets at the European Open.

The announcement that all visitors will need to be double vaccinated comes when just over half of all ATP and WTA players have been vaccinated against COVID-19.

The U.S. has 30 players in the ATP and WTA Top 100s, triple what it had in 2010. The next task is translating those big numbers of players into bigger results at the majors.

“I always wanted to get there, to be No. 1 in the world,” said the 27-year-old from Tunisia. “Top 10 I know is the beginning.”