Gilles Simon of France plays against Stan Wawrinka of Switzerland – Reuters

REUTERS: Frenchman Gilles Simon upstaged world number three Stan Wawrinka 6-4 6-4 in the third round of the Shanghai Masters on Thursday, while top seeds Novak Djokovic and Andy Murray eased into the quarter-finals.

Djokovic enjoyed a 6-4 6-4 win over Canada’s Vasek Pospisil while Murray was even more ruthless as he tamed 13th seed Lucas Pouille 6-1 6-3.

Simon, ranked 32nd in the world, took 96 minutes to beat U.S. Open champion Wawrinka and set up a last eight clash with American Jack Sock, who humbled fifth seed Milos Raonic 0-6 6-4 7-6(8).

The Swiss was leading 3-1 in the first set but a flurry of unforced errors allowed Simon to finish off the upset victory.

Djokovic opened up a 4-0 lead in the first set as Pospisil mounted a spirited comeback by breaking back in the sixth game. However, the Canadian could not stop the Serbian from wrapping up the set.

Even though Pospisil fired 12 aces and 28 winners, he was no match for Djokovic, who has not dropped a set this week after withdrawing from last week’s China Open with an elbow problem.

Defending champion Djokovic will face unseeded German Mischa Zverev, who battled past Spain’s Marcel Granollers 6-7(4) 6-4 6-1, for a place in the semi-finals.

“I thought it was a great quality of tennis today from both players. I was very pleased with the way I played from the first to last point. I don’t think I dropped my level at all,” Djokovic told the ATP website (www.atpworldtour.com).

Murray, who captured the China Open last week, won the first five games of the match and broke in the first game of the second to send Frenchman Pouille packing.

 The Scot will next face Belgium’s David Goffin, who came from a set down to defeat sixth seed Gael Monfils 4-6 6-4 6-2.

Frenchman Jo-Wilfried Tsonga downed Alexander Zverev 6-7(4) 6-2 7-5.

Gavrilova stuns Kerber at Hong Kong Open

REUTERS: World number one Angelique Kerber crashed out of the Hong Kong Open in the quarter-finals on Friday, the German slumping to a shock 6-3 6-1 defeat to Australia’s Daria Gavrilova at Victoria Park. Kerber, who also suffered a surprise loss to Elina Svitolina in the round of 16 at last week’s China Open, committed six double faults and struggled on serve as her 38th-ranked opponent secured victory in an hour and 14 minutes.

Moscow-born Gavrilova fired five aces against the German as the 22-year-old continues her quest for a first WTA singles title, and she will next face Frenchwoman Kristina Mladenovic for a place in the final.

Her victory over Kerber, who surged to the top of the rankings after winning the Australian and U.S. Open titles this year as well as reaching the Wimbledon final, was her first against the German Olympic silver medallist in six meetings.

Mladenovic defeated American Bethanie Mattek-Sands 3-6 6-3 7-6(3) in the second quarter-final. Jelena Jankovic is the defending champion and the Serb faces another Frenchwoman, Alize Cornet, in a last eight encounter later on Friday.