Elena Rybakina, the 2022 Wimbledon champion, and Canadian teen Victoria Mboko advanced to a WTA Canadian Open semi-final matchup with triumphs on Monday in the Montreal hard court event. World number 12 Rybakina of Kazakhstan led 6-1, 2-1 when Ukraine's Marta Kostyuk retired in the second set with a wrist injury.

Rybakina will be aiming for her second Tour-level title of 2025 after advancing past Marta Kostyuk via walkover in Montreal

Mboko has won 49 matches in 2025, two of those at a Grand Slam and five on her Canadian Open run. But she's here for the long haul.