Zverev will face 11th seed Kyle Edmund in the last eight after the Briton defeated Chile's Nicolas Jarry 7-6 (7/5), 6-3.
On Wednesday, Alexander Zverev put an end to Nikoloz Basilashvili's six-match win streak in Asia.
"He's someone who clearly has a lot of confidence right now, winning in Beijing probably playing the best tennis of his life right now, so it wasn't easy but I'm happy to be through", discussed Zverev when talking to ATP World Tour.
Despite suffering from a cold, the fourth-seeded German produced a hard-fought win over Nicoloz Basilashvili - and he didn't hide his joy.
The 21-year-old suffered an early exit last week at the China Open in Beijing, where Georgia's Basilashvili beat Juan Martin del Potro for just his second ATP title on Sunday.
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"I played a solid match". I played a solid match.
Alex de Minaur was no match for fellow rising star Alexander Zverev on Thursday night but the Australia young gun will still achieve a career-high ranking after reaching the third round at the Shanghai Masters.
"He knows how to play, definitely", proclaimed Zverev, who was clearly very relieved to have gotten through the game, progressing into the next round with the likes of Roger Federer and Novak Djokovic.
He'll now take on the victor of the late match between Juan Martin del Potro and Borna Coric for a spot in the last four.
"I think all the top guys will say the same thing". Image sourceThough I do feel bad for the poor boy, I've got to admit this clip made me laugh.