Australian Bernard Tomic is through to the quarter-finals of the Shanghai Masters after defeating France’s Richard Gasquet in a late-night nail-biter.

Tomic on Friday will face world No.1 Novak Djokovic who sped through the third round with a 6-2 6-3 win over Feliciano Lopez in just 71 minutes as he continued his magical run in China.

Tomic, ranked No.20, took much longer to upset 11th-ranked Gasquet 6-3 6-7 (7-1) 6-4 overnight.

The 22-year-old Australian’s impressive win came after compatriot Nick Kyrgios on Thursday escaped a fine for unsportsmanlike conduct after receiving a code violation during his explosive second-round exit from the Shanghai Masters.

Officials opted against adding to Kyrgios’s troubles after chair umpire Mohamed Lahyani sanctioned the young firebrand on Wednesday for accidentally swatting a ball in frustration towards a lineman during his loss to Kei Nishikori.

After his win against Lopez, Djokovic admitted his confidence was sky high as he remained in the form that took him to his sixth China Open title last week.

“There is no secret. I guess it depends how do you feel on a given day, depends how well your opponent is playing, how well you’re playing. It’s a combination of things,” said the two-time Shanghai champion.

“You can’t just expect to win all the time very comfortably, but I’ve been doing so for the last week-and-a-half.

“Obviously it’s giving me more confidence.”

Djokovic’s current unbeaten run dates back to the Cincinnati Masters final in August and with his win in Beijing, he became the first man to top $US15 million ($A20.5 million) in prize money in a single year.

He said there was still room for improvement despite putting together what he calls his best season yet, after winning three out of four Grand Slam finals to reach a career total of 10.