Aliassime will face Andrey Rublev in the Qatar Open semifinals after he beat fellow Russian Daniil Medvedev when the latter retired after losing the first set 6-3 on Thursday in Doha.

The negative spiral that has enveloped Daniil Medvedev in the last year does not want to disappear. The Russian ace is trying in every way to return to the sensational player who had reached the top of the ATP ranking and who had won his first Major at the 2021 US Open, but the signs continue to be very negative.

Felix Auger-Aliassime will compete in the semi-final of the ATP 500 event in Doha. The 24-year-old Canadian played only one sets in the second round and quarter-final, preserving energy for the latter stage of the tournament.

Auger-Aliassime won the first set of Thursday’s match 6-3 before Medvedev, who was seeded fourth at the ATP 500 tournament, left the court

Montreal's Felix Auger-Aliassime advanced to the quarterfinals of the Qatar Open tennis tournament Wednesday when second-round opponent Hamad Medjedovic withdrew with a right leg injury.

Aliassime advanced to the semifinals of the Qatar Open tennis tournament after Russia’s Daniil Medvedev retired from their quarterfinal with an illness. Auger-Aliassime won the first set of Thursday’s match 6-3 before Medvedev,

Medvedev, ranked sixth on the ATP Tour, holds a commanding 7-1 head-to-head record versus Auger-Aliassime, but the Canadian won the most recent meeting in the round of 16 at the 2024 Paris Olympics. The Russian defeated Auger-Aliassime in the Qatar Open semi-finals in 2023.

Montreal's Felix Auger-Aliassime had his comeback attempt fall just short in a 7-5, 4-6, 7-6 (5) loss to Andrey Rublev on Friday in the semifinals of the Qatar Open.