The Rafael Nadal resurgence continues


He will now face Argentina's Juan Martin del Potro, the 2009 US Open champion and Rio 2016 Olympic silver medallist who came from behind to end the run of Serbia's Viktor Troicki.

World number one Rafael Nadal needed three sets to defeat Bulgarian Grigor Dimitrov and reach the last four of the Shanghai Masters.

Roger Federer is through to the semi-finals of the Shanghai Masters after a hard-fought victory over Richard Gasquet.

In the third set, Nadal saved the one break point he faced in the match in the fifth game, and broke serve in the sixth to set up victory. I'm going to the hospital to see what the MRI says, and what the doctor says. Nonetheless, his superb serving eventually got him through the mentally-draining service game, successfully claiming the first set 6-3 after just 35 minutes of play. "I would like to play and be 100 per cent".

The Spanish world number one defeated Dimitrov en route to winning the China Open last week and he repeated the success with a 6-4 6-7 (6/8) 6-3 win on Friday, extending his winning streak to 15 matches.

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"I played a very good match, I don't know how many mistakes I made, but very few", said the 16-time Grand Slam victor and top seed in Shanghai. "Of course, being able to win the U.S. Open, Beijing, and being in the semifinals here ..."

Fognini was playing the day after being handed a suspended ban from two grand slams and $96,000 (A$123,000) fine for verbally abusing a female umpire at the US Open.

Breaking serve for the second straight time, Harrison looked well on course for the huge upset in the handsome city of Shanghai.

Meanwhile, Cilic's quarter-final win over Albert Ramos-Vinolas puts him ahead of Dimitrov at No 5 in the race to the ATP World Tour Finals in London.