Defending champions Serena and Venus Williams [ Images ] defeated Cara Black [ Images ] and Liezel Huber 6-4, 6-3 to win the Australian Open [ Images ] women's doubles title on Friday, maintaining the partnership's perfect record in grand slam finals.

The second-seeded Williams sisters continued their dominance over Zimbabwe's Black and American Huber, overcoming a sluggish start under bright sunshine at Rod Laver Arena to win in 86 minutes and seal their 11th grand slam doubles title.

The Williams sisters have now beaten the top-ranked pair in all three of their meetings, including the US Open [ Images ] final last year.

The title was the Williams sisters' fourth at Melbourne [ Images ] Park, where they also won in 2001 and 2003.

Serena will clash with Justine Henin [ Images ] for the women's singles title on Saturday. (