WIMBLEDON Date: 22 June - 5 July Coverage: BBC One, BBC Two, BBC HD, Red Button, website streaming (UK only) and text commentary, 5 Live, 5 Live Sports Extra, BBC iPlayer
Tennis on the BBC
Highlights - Serena sweeps aside Azarenka
By Caroline Cheese
BBC Sport at Wimbledon
Serena Williams remains on course for a meeting with sister Venus in Saturday's Wimbledon final after sweeping aside Victoria Azarenka 6-2 6-3.
The second seed will face Elena Dementieva in the semi-finals after a typically powerful display.
Williams made one error as she raced through the first set, and although the second set was more closely fought, she came through in one hour 13 minutes.
Dementieva had earlier thrashed Italian Francesca Schiavone 6-2 6-2.
Venus, the five-time champion, is favourite to defend her title this year, but Serena has been in ferocious form and, like her sister, is yet to drop a set, but she still sees room for improvement.
"I think my game is in a good state. I am definitely satisfied," she said.
Serena excited by Wimbledon progress
"I think I could still serve a little better and return a little better and just stay in the match the whole way.
"Hopefully I'll be able to do that within the next match, and hopefully a match after that."
Azarenka, the 19-year-old from Belarus, had also impressed on the way to her first Wimbledon quarter-final, but she was no match for a ruthless Serena.
The American hammered 13 winners and just that one unforced error in a near-perfect first set, breaking twice to wrap it up in 26 minutes.
Serena's first serve percentage dropped at the start of the second, and that opened the door for Azarenka.
The teenager capitalised, breaking serve for the first time when Serena netted a forehand in the fifth game.
But the setback only seemed to fire up Serena, the two-time champion roaring her delight when a brutal return onto the baseline forced Azarenka to go wide at break point in the very next game.
The Belarusian, who stunned Serena in their last meeting at Miami earlier this year, did not win another game.
Her fourth double fault handed Serena the break and a 5-3 lead and the American served out to love.
"She was striking the ball so hard and so good," said Azarenka.
"She didn't give me many opportunities, you know. She really showed the unbeatable Serena today, I guess."
Next up for Serena is fourth seed Dementieva, who is also yet to drop a set at Wimbledon.
She reached the last four for the second year in a row with a routine win over surprise semi-finalist Francesca Schiavone.
"It was a tough match despite the score," insisted the Russian.
"The weather conditions were tough today so I'm glad to go through. I was trying to play very aggressive and make it as quick as possible because it is very hot out there.
"I am sure it will be a tough challenge for me against Serena, as she likes to play on grass. But I just want to give myself another try."
Highlights - Dementieva secures semi spot