Australian Open Champion Azarenka

US Open: Serena Williams wins US Open quarterfinal 6-0, 6-0

New York: The top-ranked and No. 1-seeded Serena Williams advanced to the U.S. Open semifinals with a comprehensive 6-0, 6-0 win Tuesday over 18th-seeded Carla Suarez Navarro of Spain.   Williams is looking better and better