Serena and Venus Williams and men's world number two Roger Federer cruised
into the fourth round of the WTA and ATP hardcourt tournament here but second
seed Dinara Safina crashed out.


Reigning Australian Open champion Serena Williams defeated China's Peng Shuai
7-5, 6-2 while US fifth seed Venus Williams, the reigning Wimbledon champion,
beat Germany's Anna-Lena Groenefeld, 7-5, 6-3.