SHANGHAI (AFP) British world number four Andy Murray hammered 12th seed Jo-Wilfried Tsonga 6-2, 6-2 Friday to reach the semi-finals of the Shanghai Masters. Second seed Novak Djokovic earned a ninth straight match win in China as the two-time Beijing champion advanced over Spains Guillermo Garcia-Lopez 6-2, 6-3. The Spaniard made his name this autumn as he beat Rafael Nadal in the Bangkok semi-finals a fortnight ago. Djokovic remains the highest seed still in the field after Nadals third-round loss Thursday to Juegen Melzer. Murrays success against Frenchman Tsonga puts him into the final four against the winner from the match between Roland Garros semi-finalist Melzer and Argentine Juan Monaco. Murrays game was looking bleak a week ago in Beijing when he lost in the quarter-finals and remained without a place in next months eight-man World Tour Finals in London. But that immediate problem was solved with Murrays third-round win on Thursday against another French opponent in Jeremy Chardy, who proved to be just a warm-up for the damage inflicted on Tsonga, the 2008 Australian Open finalist. It was nice today, good conditions, there was no wind, said Murray, playing under the open stadium roof after four days of rain. The sun had gone as well. Normally, those are the two things that make playing outdoors a little bit trickier. I got used to the conditions pretty quickly. It was a little bit different when the roofs closed, but it didnt really affect me today. Murray blasted through in 54 minutes without facing a break point and getting past the Tsonga serve on four occasions. The Scot finished his rout as the frustrated Frenchman sailed a return long over the baseline. The result was the seventh loss in eight recent meetings with a top 10 opponent for Tsonga, seeded 12th but struggling with form after returning only last week in Tokyo due to a knee problem which kept him off the summer hardcourt circuit. I got off to a good start, which is important against him, said Murray, still looking for a second title of 2010 after winning Toronto against Roger Federer. Hes a really good frontrunner. But he struggled a little bit on his serve. He wasnt serving as big as usual, so I managed to get into a lot of the return games.