Geneva Open: Khachanov advances to last eight
Karen Khachanov benefited from the abandonment of Kei Nishikori (7-5, 2-5) on Wednesday. He’ll play the winner of the match between Austrian qualifier Sebastian Ofner and Portuguese Nuno Borges in the next round

Russian Karen Khachanov, the No 4 seed, reached the quarter-finals of the Geneva Open when Japanese Kei Nishikori retired on Wednesday afternoon at Tennis Club de Genève, Parc des Eaux-Vives.
Khachanov, ranked No 24, led 7-5, 2-5 when Nishikori, ranked No 62, pulled out on Wednesday at Tennis Club de Genève, Parc des Eaux-Vives.
The Russian will play the winner of the match between Austrian qualifier Sebastian Ofner and Portuguese Nuno Borges next.
In the previous round of the Geneva tournament, the 35-year-old Japanese edged out American Learner Tien (4-6, 6-4, 6-4).
Geneva ATP 250, other second-round results (Tennis Club de Genève, Parc des Eaux-Vives, clay, EUR 596.035, most recent results first):
- Cameron Norrie vs. Tomas Machac
- Marton Fucsovics vs. Novak Djokovic
- Alexei Popyrin vs. Jacob Fearnley
- Arthur Rinderknech vs. Hubert Hurkacz
- Matteo Arnaldi vs. Fabian Marozsan
- Sebastian Ofner vs. Nuno Borges
- Taylor Fritz vs. Quentin Halys: wednesday