Canadian Denis Shapovalov, the No 9 seed, reached the last 8 of the Swiss Indoors by winning against French lucky loser Valentin Royer 7-6 (3), 6-2 at the St. Jakobshalle. in Basel on Thursday afternoon.
Shapovalov, ranked No 23, will play Brazilian Joao Fonseca next.
The Canadian edged out American Marcos Giron (6-7 (3), 6-0, 7-6 (4)) ahead of his victory.
In the previous round of the Basel tournament, Royer, ranked No 69, defeated Belgian Raphael Collignon (6-4, 7-6 (5)).
Basel ATP 500, other second-round results (St. Jakobshalle., hard, EUR 2.523.045, most recent results first):
Taylor Fritz vs. Ugo Humbert
Casper Ruud vs. Stan Wawrinka
Reilly Opelka vs. Botic van de Zandschulp
Jaume Munar vs. Ben Shelton
Felix Auger-Aliassime vs. Marin Cilic: thursday
Alejandro Davidovich Fokina (8) beat Jenson Brooksby: 6-7 (6), 6-4, 7-5
Joao Fonseca beat Jakub Mensik (7): W/O