After the bad defeat suffered in Marseille last week, the former world number 1 had played two good matches in Doha this week. Daniil was very close to defeat against his compatriot Karen Khachanov, but he was able to react in the most difficult moment and played excellent tennis in the second and third sets.

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.

Aliassime outlasted Kazakhstan’s Alexander Bublik 7-6(7), 6-7(4), 6-3 during a heated opening-round match Tuesday at the Dubai Tennis Championships. During a first-set tiebreak, Auger-Aliassime called for a video review due to interference from a ball boy.

Felix Auger-Aliassime is into the Doha semifinals after Daniil Medvedev retired from the quarter-final on Thursday with an illness.

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

Third-seeded Andrey Rublev followed up his Qatar Open title with a first-round exit at the Dubai Championships, losing to qualifier Quentin Halys 3-6, 6-4, 7-6 (5)