MONTREAL, CANADA - AUGUST 02: Nuno Borges of Portugal plays a forehand against Aleksandar Kovacevic of the United States during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Aleksandar Kovacevic of the United States plays a backhand against Nuno Borges of Portugal during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Aleksandar Kovacevic of the United States plays a forehand against Nuno Borges of Portugal during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Nuno Borges of Portugal plays a forehand against Aleksandar Kovacevic of the United States during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Aleksandar Kovacevic of the United States plays a forehand against Nuno Borges of Portugal during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Aleksandar Kovacevic of the United States reacts against Nuno Borges of Portugal during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Nuno Borges of Portugal plays a forehand against Aleksandar Kovacevic of the United States during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)

MONTREAL, CANADA - AUGUST 02: Aleksandar Kovacevic of the United States plays a backhand against Nuno Borges of Portugal during their singles first round match on day one of the ATP 1000 National Bank Open presented by Rogers at Stade IGA on August 2, 2026 in Montreal, Quebec, Canada. (Photo by Minas Panagiotakis/Getty Images)