Andrey Rublev is the highest seed left in the Qatar Open after a dramatic day that saw fellow Russian Daniil Medvedev quit his quarter-final with food poisoning.

Four of the top-seeded players of the Qatar Open advanced to the quarterfinals of the tournament. Alex de Minaur, Andrey Rublev, Daniil Medvedev, and Jack Draper won their matches in straight sets. Top-seeded player Carlos Alcaraz can join them among the last eight later if he beats Italy’s Luca Nardi.

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.

Montreal's Felix Auger-Aliassime advanced to the semifinals of the Qatar Open tennis tournament after Russia's Daniil Medvedev retired from their quarterfinal with an illness.

Andrey Rublev saved one match point and needed eight of his own to subdue Alex de Minaur 6-1, 3-6, 7-6 (8) in the Qatar Open quarterfinals. The tortuous journey to the win prompted Rublev to joke about de Minaur,