Melbourne - Czech fourth seed Petra Kvitova crashed out of the Australian Open on
Saturday, falling in straight sets to unseeded American teenager
Madison Keys, who is coached by former great Lindsay Davenport.
number 35 Keys, 19, defeated the reigning Wimbledon champion 6-4, 7-5
in the third round, setting up an all-American last 16 clash with
"My hands are still shaking, right now I can't
even process this, I'm just so excited," she said, paying tribute to the
"amazing" Davenport, a three-time Grand Slam champion who won in
Australia in 2000.
Like Davenport, Keys is a big-serving baseliner
with powerful groundstrokes, which she used to full effect against
Kvitova, who has admitted to struggling with nerves throughout the
The Czech, who was a semi-finalist at Melbourne Park
in 2012 but lost in the first round last year, allowed Keys to dictate
terms in a poor performance which included six double faults and 32
Keys, who has never before advanced beyond the
third round of a major, looked comfortable on the big stage and went up a
break in the fifth game.
Kvitova broke back but Keys responded with another break and held on to serve out the set with an ace after 36 minutes.
The second set followed a similar pattern, with Keys on the attack amid an early exchange of breaks.
tried to move Keys from her baseline comfort zone but the American rose
to the challenge and the Czech double faulted to concede a second
The 24-year-old again broke back but Keys kept pressing and
brought up two break points at 5-5, hitting the first wide but
converting the second for a chance to serve out the set when Kvitova's
return failed to find the corner.
It proved decisive as Keys coolly held the Czech to love, serving out the match for her biggest ever win.
Collated results from day six of the Australian Open at Melbourne Park on Saturday:
Stan Wawrinka (SUI x4) bt Jarkko Nieminen (FIN) 6-4, 6-2, 6-4
Feliciano Lopez (ESP x12) bt Jerzy Janowicz (POL) 7-6 (8/6), 6-4, 7-6 (7/3)
Milos Raonic (CAN x8) bt Benjamin Becker (GER) 6-4, 6-3, 6-3
Kei Nishikori (JPN x5) bt Steve Johnson (USA) 6-7 (7/9), 6-1, 6-2, 6-3
Guillermo Garcia-Lopez (ESP) bt Vasek Pospisil (CAN) 6-2, 6-4, 6-4
Novak Djokovic (SRB x1) bt Fernando Verdasco (ESP x31) 7-6 (10/8), 6-3, 6-4
Gilles Muller (LUX) bt John Isner (USA x19) 7-6 (7/3), 7-6 (8/6), 6-4
David Ferrer (ESP x9) bt Gilles Simon (FRA x18) 6-2, 7-5, 5-7, 7-6 (7/4)
Agnieszka Radwanska (POL x6) bt Varvara Lepchenko (USA x30) 6-0, 7-5
Garbine Muguruza (ESP x24) bt Timea Bacsinszky (SUI) 6-3, 4-6, 6-0
Venus Williams (USA x18) bt Camila Giorgi (ITA) 4-6, 7-6 (7/3), 6-1
Serena Williams (USA x1) bt Elina Svitolina (UKR x26) 4-6, 6-2, 6-0
Dominika Cibulkova (SVK x11) bt Alize Cornet (FRA x19) 7-5, 6-2
Victoria Azarenka (BLR) bt Barbora Zahlavova Strycova (CZE x25) 6-4, 6-4
Madison Brengle (USA) bt Coco Vandeweghe (USA) 6-3, 6-2
Madison Keys (USA) bt Petra Kvitova (CZE x4) 6-4, 7-5