Caroline Wozniacki gears up her game for a US Open return hitting with Holger Rune.
The 43-year-old will play at Montreal and Cincinnati this year.
Spain's BJK Cup captain is new head of women's tennis for the Rafa Nadal Academy.
In a scary scene, Yibing Wu fell over his court-side seat during a changeover.
The American is opening is looking to hit the next gear of her game.
Defending champion Liudmila Samsonova enjoyed an solid opening round win in Washington D.C
"It would be a very emotional day," Frances Tiafoe says of his Washington, DC dream.
