Playing just one grass-court tournament before Wimbledon, she was defeated in the first round of qualifying at the by compatriot.
The victory improves the 22-year old Daria Gavrilova to an unbeaten 2-0 singles match record over the top-twenty ranked Timea Bacsinszky.
Kvitova did not give Muguruza a single chance for break point throughout the second frame.
Playing in her country at the , she lost in the first round to compatriot Jil Teichmann.
In the Fed Cup semifinal against Belarus, Bacsinszky beat but lost to , and Switzerland eventually lost to Belarus 2-3 in that round.
Keys goes past the higher ranked Kuznetsova with a 7 7 -6 2 , 6-2 sweep in a one hour and thirty-six minute third round match.
Did I even waste it? The conventions in Germany and in the United States would not have been what they were without my selfless investment of money and labour.
Both my mind and my body had a certain limited potential only, but that potential I had invested way too much and way too early.