World tennis number two Victoria Azarenka insists she can topple American great Serena Williams from her perch - despite slumping to an eighth defeat in eight grand slam meetings against the 17-time major champion.
For the second straight year, the Belarusian came up short in the US Open final against the veteran American, losing another three-setter in the longest women's final in more than 30 years.
The defeat took her career losing record against the world No.1 to 13-3, but the 24-year-old is trying to take the smallest comfort from those statistics - two of those wins came in 2013 in the Doha and Cincinnati finals after a four-year drought.
Azarenka is not alone in her futile attempts to make a significant breakthrough against Williams.
Maria Sharapova, the world No.3, has only beaten the American twice in 16 meetings, with both those wins coming back in 2004 while fourth-ranked Agnieszka Radwanska has a 6-0 losing record.
The Pole has taken just one set off Williams in all of those matches.
