Nadal continues serene progress as Raonic shocks Murray April 27, 2012 -- Updated 1834 GMT (0234 HKT) 4 Andy Murray was dumped out of the Barcelona Open by 21-year-old Canadian Milos Raonic 2 Rafael Nadal moves into the semifinals of the Barcelona Open Spaniard beats Serbia's No. 5 seed Janko Tipsarevic in just 83 minutes Britain's Andy Murray knocked out by big-serving Canadian Milos Raonic Victoria Azarenka survives scare to reach semifinals of Stuttgart tournament (CNN) -- World no. 2 Rafael Nadal continued his serene progress at the Barcelona Open after defeating No. 5 seed Janko Tipsarevic 6-2 6-2. The Spaniard hasn't been beaten at the tournament since 2003 and showed no signs of slipping up against the Serbian, who he dismissed in 83 minutes. He has lifted the trophy on his past six appearances and took his event record to 33 wins and just one loss. Nadal will now face fellow Spaniard Fernando Verdasco in the semis after the No. 7 seed's quarterfinal was cut short due an injury to his opponent Kei Nishikori, of Japan. But there was a shock in one of the other last eight clashes as Britain's Andy Murray was dumped out of the tournament by big-serving Canadian Milos Raonic. Murray, the world No. 4, who also made an early exit at last week's Monte Carlo Masters, struggled to find any rhythm against the 21-year-old, and slumped to a 6-4 7-6 defeat -- his sixth reverse of the season. "It's very, very difficult and a big plus in confidence for me," Raonic told the ATP Tour's official website. Clay's not his best surface, but he consistently does well on it. Last year he reached the semi-finals at the French Open, Monte-Carlo and Rome, so he can play really well on it. For me, it was a big win, regardless of the surface. Ranoic only lost his serve once in the match and added: "I was playing really well up till that point. He played really well the next game at 5-5. I didn't really have any opportunities and I was fortunate that I served well again in the next game then played a good tie-break. Raonic will now face a semifinal clash with David Ferrer, after the Spaniard beat compatriot Feliciano Lopez, the No. 7 seed, 6-7 7-6 6-3 in a match that lasted nearly three hours. In Stuttgart, women's world No. 1 Victoria Azarenka survived a scare as she fought off a stiff challenge from wild card Mona Barthel to reach the final four. The Belarusian eventually triumphed 6-4 6-7 7-5 over the 21-year-old German, who recorded 13 aces in the match. "She keeps producing some great tennis and she showed again today why she is a tough one to beat," Azarenka told reporters. Her serve is definitely up there with the best, after more than two-and-a-half hours she was still blasting down aces. I have been saying for a while she is one to watch. Azarenka will now face Poland's Agnieszka Radwanska in the last four, after she beat French Open champion Li Na 3-6 6-2 6-3. Australia's Samantha Stosur faces Maria Sharapova, from Russia later on Friday, with the winner playing either Germany's Angelique Kerber or Czech Petra Kvitova in the other semi. April 27, 2012 -- Updated 0917 GMT (1717 HKT) She lives in Monaco, and she honed her skills in Marbella and Arizona -- but world No. 1 Victoria Azarenka was most definitely made in Minsk. April 26, 2012 -- Updated 1533 GMT (2333 HKT) 1 Novak Djokovic gives CNN's Open Court an insight into his extensive media obligations with behind-the-scenes access. He predicted it would be an emotional occasion, and so it proved when Ivan Ljubicic hung up his racket after playing his final match in his adopted home of Monte Carlo. April 26, 2012 -- Updated 1351 GMT (2151 HKT) CNN's Open Court talks to Serbian Janko Tipsarevic as he mentors up-and-coming stars climbing the tennis ranks. April 26, 2012 -- Updated 1526 GMT (2326 HKT) Daniela Hantuchova gives CNN's Open Court a tour of her favorite places in Monaco and reveals why she won't be leaving anytime soon. April 26, 2012 -- Updated 1320 GMT (2120 HKT) Hard work is paying big dividends for Victoria Azarenka as she targets the French Open, Wimbledon and the Olympics.