Shapovalov, ranked No. 18, will next play Arthur Rinderknech after the Frenchman’s 6-4, 6-1 win over Jozef Kovalik. Rinderknech had advanced to the last 16 after his first-round opponent, sixth-seeded Alexander Bublik, retired with an injury.
Fourth-seeded Dan Evans and eighth-seeded Frances Tiafoe advanced in straight sets and will meet in the quarterfinals.
Second-seeded Felix Auger-Aliassime also won in straight sets and will face Botic van de Zandschulp in the other quarterfinals match. Van de Zandschulp beat seventh-seeded Marton Fucsovics 7-6 (3), 3-6, 7-5.
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