Duckworth, ranked No 80, won against American Marcos Giron (6-4, 6-1) in the previous round of the Rogers Cup.

Montreal Masters 1000, other second-round results (Stade IGA, hard, USD 6.795.555, most recent results first):

• Sebastian Korda vs. Taylor Fritz
• Thanasi Kokkinakis vs. Hubert Hurkacz
• Flavio Cobolli vs. Arthur Rinderknech
• Alexei Popyrin vs. Ben Shelton: thursday
• Lorenzo Sonego vs. Alejandro Tabilo: thursday
• Holger Rune (13) beat Pablo Carreno Busta: 6-1, 6-3
• Jannik Sinner (1) beat Borna Coric (Q): 6-2, 6-4
• Matteo Arnaldi beat Karen Khachanov (16): 7-5, 7-5
• Grigor Dimitrov (7) beat Rinky Hijikata (Q): 6-1, 6-0
• Alexander Zverev (2) beat Jordan Thompson: 6-1, 6-1
• Andrey Rublev (5) beat Tomas Martin Etcheverry: 7-6 (3), 6-2
• Alejandro Davidovich Fokina beat Daniil Medvedev (3): 6-4, 1-6, 6-2
• Kei Nishikori beat Stefanos Tsitsipas (8): 6-4, 6-4
• Nuno Borges beat Ugo Humbert (12): 3-6, 7-6 (2), 7-6 (4)
• Brandon Nakashima (Q) beat Tommy Paul (10): 6-2, 6-7 (5), 6-1