Alexander "Sasha" Bublik, a Russian-born Kazakhstani tennis player, made history in January 2026 by becoming the first Kazakhstani man to crack the ATP top 10, reaching a career-high world No. 10. He has won nine ATP Tour singles titles and is currently the top-ranked Kazakhstani male player. His greatest Grand Slam singles success came at the 2025 French Open, where he reached the quarterfinals—another first for his nation—and he also reached the 2021 French Open doubles final with Andrey Golubev. Born in Gatchina, Russia, in 1997 and coached by his father, Bublik switched his allegiance to Kazakhstan in 2016. He quickly rose through the ranks, breaking into the top 100 in 2017 and reaching his first ATP finals in 2019, cementing his status as a trailblazer for Kazakhstani tennis.