Almaty Open: Mannarino upsets Rublev to reach quarterfinals

French veteran Adrian Mannarino secured a spot in the ATP 250 Almaty Open quarterfinals after a significant upset against fourth seed Andrey Rublev. Mannarino defeated the Russian in three sets with a score of 6-4, 3-6, 6-3, marking his fourth appearance in the tournament's final eight and his 13th career victory at the event.

In other notable results, Stefanos Tsitsipas advanced to the quarterfinals after defeating Mikhail Kukushkin 6-1, 6-2. Following the match, Tsitsipas requested a signed jersey from Kukushkin, who was competing in his final professional tournament. Australian James Duckworth also reached the quarterfinals by defeating second seed Luciano Darderi 7-5, 7-6(7).

Upcoming quarterfinal matchups include Mannarino against Nikoloz Basilashvili, and Duckworth against Tsitsipas.