VENUS WILLIAMS claims aggression is the key to the success she and sister Serena have enjoyed at Wimbledon.

Venus has gathered five titles, with Serena picking up two.

Only once in this decade has neither sister appeared in the title match, when Amelie Mauresmo beat Justine Henin in 2006, and there could be a fourth all-Williams final on Saturday.

Venus moved into the last four with a 6-1, 6-2 victory over Agnieszka Radwanska, and tomorrow meets top-seed Dinara Safina.

Younger sibling Serena (right) was a 6-2, 6-2 winner against Victoria Azarenka and now plays Elena Dementieva.

"I think the style of game Serena and I play, we play better than the other women," said Venus.

"We're very aggressive. I think that shows in our results."

Safina, who beat Sabine Lisicki in the last round, said: "I'm just taking one match at a time, and so far it's working."

Dementieva, who has not dropped a set, claimed: "It was good to win all these matches in two sets and save some energy. But we'll see if I'm going to be ready for the big one."