| Follow us on Twitter |
The sixth seed won 6-3, 6-3, 6-3 in two hours 10 minutes to set up a meeting with either two-time defending champion Rafael Nadal or 1998 winner Carlos Moya, who play their all-Spanish quarter-final later on Wednesday.
The 20-year-old, the youngest player left in the men's draw, will be the fourth Serb to feature in the last four with compatriots Jelena Jankovic and Ana Ivanovic already in the semi-finals of the women's singles.
Another Serb, Nenad Zimonjic, has made it into the semi-final in the men's doubles.
Djokovic is also only the second Serbian man to reach a Grand Slam singles semi-final after Slobodan Zivojinovic who made the last four at the 1985 Australian Open and Wimbledon in 1986.
"I played really well. I wanted to impose my style of play. It's a sport where things can change very quickly," explained Djokovic, who also beat the Russian in their only previous meeting on clay at Estoril this year.
"The score doesn't show the right picture about the match. He was not easy to play. He's the kind of player that makes you work for the points.
"I knew he could be very dangerous. He's a specialist on clay and beat (Andy) Roddick. It was his first quarter-final and he had nothing to lose." SOURCE: © 2007 Australian Broadcasting Corporation