Petra Kvitova starts Wimbledon defense with 6-4 6-4 win over Akgul Amanmuradova . The world number one will play the Russian in round two on Saturday. No . 2 seed Victoria Azarenka overcomes the USA 's Irina Falconi 6-1 6-4 . No . Williams avoided the early exit suffered by her older sister Venus , who lost in the first round on Monday for the first time since her debut in 1997 . 19 seed Lucie Safarova beaten 6-3 6-0 by Kiki Bertens of the Netherlands .
Petra Kvitova starts Wimbledon defense with 6-4 6-4 win over Akgul Amanmuradova . The world number one will play the Russian in round two on Saturday. No . 2 seed Victoria Azarenka overcomes the USA 's Irina Falconi 6-1 6-4 . No . 19 seed Lucie Safarova beaten 6-3 6-0 by Kiki Bertens of the Netherlands .