The 2017 champion in Canada will now play Italian Matteo Arnaldi, who  defeated qualifier Tristan Schoolkate 6-3, 3-6, 6-3.Number eight Casper Ruud put out Roman Safiullin 6-3, 6-3 for another seeded win.

Alexander Zverev has overcome a couple of tough rounds at the start of the Canadian Open and is now in the round of 16 after reaching his 500th professional victory by defeating Matteo Arnaldi (32th seed) 6-7(5),

TORONTO (AP) — Top-seeded Alexander Zverev of Germany beat Matteo Arnaldi of Italy 6-7 (5), 6-3, 6-2 on Thursday night in the third round of the National Bank Open to reach 500 match victories.