World No 1 Victoria Azarenka moved within two wins of her second Grand Slam title of the season on Tuesday, but admitted she might never be satisfied with her career.

The 23-year-old, who captured the Australian Open this year, is the first Belarusian to make the last four in New York, achieving the feat with a 6-1,
4-6, 7-6 (7/5) win over defending champion Samantha Stosur.