"I will need a few weeks of rest before I can resume any physical activity," Simona Halep said.
Olympic gold-medal champion continues recovery from ankle surgery.
Frances Tiafoe is grateful for the response he's received from his US Open semifinal run.
San Diego Open set for September 17-25th at Barnes Tennis Center.
Several stars reach career-high rankings.
US Open champion Iga Swiatek rules the WTA, while some new faces crack the Top 10.
"I'm hungry for more," new world No. 1 said.
