BASEL, Switzerland (AP) — Felix Auger-Aliassime's bid for a third consecutive Swiss Indoors title ended Thursday when he lost to big-serving Giovanni Mpetshi Perricard 6-1, 7-6 (6).
Mpetshi Perricard fired 22 aces past Auger-Aliassime and will face another Canadian, Denis Shapovalov, in the quarterfinals.
Ben Shelton reached the quarterfinals when he beat home favorite Stan Wawrinka 7-6 (2), 7-5. The 22-year-old Shelton will face top-seeded Andrey Rublev for a spot in the final four.
Third-seeded Stefanos Tsitsipas beat Botic van de Zandschulp 7-6 (3), 7-5 and will face Arthur Fils in the quarterfinals.
Holger Rune, who is seeded fourth, also advanced. He defeated Swiss player Dominic Stricker 6-3, 7-6 (2) and gets David Goffin next.