The American sisters cross the semi-finals, with VENUS who is seeded thirteenth, beating fellow American COCO VANDEWEGHE.
It marked the first time the thirty-six-year-old would reach a major final since 2009, and a win would mean her eighth major title.
On the other hand, her sister SERENA is gunning for an Open-era record 23rd Grand Slam singles title, and a seventh Australian Open victory.
