The Romanian said she was happy to drive with her coach Darren Cahill, and felt safer on the ground.
The Canadian's U.S. Open is now officially in doubt.
Canadians aren't the only major fans of Denis Shapovalov.
Before the US Open begins, relive most thrilling Wimbledon exchanges.
Grass-court Slam secures $224 million loan for roof over Court Number One.
Reigning US Open champion says second surgery went well.
The defending WTA Finals champions have qualified for Singapore, along with Hingis and Chan.
