MIAMI, FL, USA
Caroline wozniacki is through to the quarterfinals at the Miami Open after edging through in a tight first set against Muguruza, before the Spaniard was forced to retire from the match, 7-6(1).
"I was so focused on myself that I wasn't really paying attention to Garbiñe," Wozniacki admitted after the match. "She said she wasn't feeling that great, and I just wish her a speedy recovery. I hope it's nothing too serious."