SHANGHAI - Seventh seed Alex de Minaur defeated Portugal's Nuno Borges 7-5, 6-2 on Wednesday to advance to the quarterfinals of the Shanghai Masters.

This was their first career meeting. The victory marks de Minaur as the third player this season to record 50 tour-level wins after Carlos Alcaraz and Taylor Fritz.

"It's great to get to 50, but I'm aiming for more. There's still a lot of tennis to be played, and hopefully I can finish off the year with a lot more wins," De Minaur said.

Daniil Medvedev advanced by beating American rising star Learner Tien 7-6 (6), 6-7 (1), 6-4 after a lengthy and challenging match.

Canada's 12th seed Felix Auger-Aliassime reached his first Shanghai quarterfinal by defeating the eighth seed Lorenzo Musetti of Italy. He also made history as the first Canadian to reach the quarterfinals at an ATP Masters event.

"The serving is solid overall. And then, a few situations in danger that I was able to save that got me to win in straight sets. It doesn't happen every time, but obviously you take it when it happens," he said.

Auger-Aliassime will next face Frenchman Arthur Rinderknech, who beat Czech player Jiri Lehecka 6-3, 7-6.