Venus and Serena Williams, who will contest the Wimbledon singles final for a fourth time in Saturday, reached the final of the women's doubles for a second successive year on Friday.

The three-time defending champions defeated top seeds Cara Black of Zimbabwe and America's Liezel Hueber 6-1, 6-2.

They will face either Spanish duo Virginia Ruano Pascual and Anabel Medina Garrigues or Australian pair Samantha Stosur and Rennae Stubbs in Sunday's final.

The Williams sisters were doubles champions here in 2000, 2002 and 2008.