Andrey Rublev has outlasted top-seeded defending champion Jannik Sinner 6-3 1-6 6-2 to reach the semi-finals in the rain-interrupted ATP Tour event in Montreal.

Fifth seed Rublev beat Brandon Nakashima 6-2 6-2 earlier Saturday, while Australian Open champion Sinner also was playing his second match of the day after topping beat Alejandro Tabilo 6-4 6-3 in the afternoon.

Rain washed out play Thursday night and all of Friday as remnants of Tropical Storm Debby rolled through, putting the event set to end Monday behind schedule.

Sinner missed the Olympics because of tonsillitis after a quarter-final loss at Wimbledon.

In the late match, Kei Nishikori faced Matteo Arnaldi for a semi-final spot against Rublev, the 26-year-old Russian with victories this year in Madrid and Hong Kong.

The other two quarter-finals were pushed back to Sunday.

Australia’s Alexei Popyrin was set to face fourth seed Hubert Hurkacz while second-seeded Alexander Zverev was set to face Sebastian Korda, the winner last week in Washington.

Popyrin beat seventh-seeded Grigor Dimitrov 4-6 7-6 (7-5) 6-3. Hurkacz beat Australian Thanasi Kokkinakis 4-6 6-3 7-6 (8-6) in the second round, then topped Arthur Rinderknech 4-6 6-3 6-4.

Zverev beat 13th-seeded Holger Rune 6-3 7-6 (7-5).

Korda  topped ninth-seeded Taylor Fritz 6-4 7-6 (7-4) in a second-round match that was originally scheduled for Thursday night, then moved on after sixth-seeded Casper Ruud withdrew because of illness.