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.

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.

Canada's Felix Auger-Aliassiame is through to the semifinals of the Qatar Open. The 24-year-old from Montreal advanced after fourth-seeded Daniil Medvedev retired from their quarterfinal match Thursday. Auger-Aliassiame won the first set 6-3 before Medvedev withdrew.

Auger-Aliassime advances as Medvedev retires with illness

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.