Alexander Bublik

Alexander Stanislavovich "Sasha" Bublik (; born 17 June 1997) is a Russian-born Kazakh professional tennis player. He has achieved a career-high ranking of No. 38 (17 May 2021) in the ATP rankings.
Career.
Bublik was born in Gatchina and started playing tennis at the age of 4. He was coached by his father Stanislav Bublik. On the junior tour, Bublik had a career-high ranking of No. 19. Bublik has won four ITF singles titles and three ITF doubles titles. 
In 2016, Bublik, joined several other players by switching to playing for Kazakhstan, explaining: 
He has publicly stated he hates tennis and only plays for the money: "If there was no money, I would stop playing tennis instantly. I haven’t earned enough money, in any other case I would have already retired".
2016: Futures titles and first ATP wins.
Bublik began 2016 ranked World No. 964. He won his first Futures title in Doha in April 2016, followed by titles in Moscow, St. Petersburg, and Sweden.
Bublik made his ATP main-draw debut at the 2016 St. Petersburg Open, where he received wildcards into both the singles and doubles main draw.
Bublik qualified for the Kremlin Cup, where he notched the biggest win of his career, upsetting the top seed and world No. 13 Roberto Bautista Agut in straight sets in the round of 16. He then lost a tight three-set match to the eventual champion Pablo Carreño Busta.
In November 2016, Bublik announced that he would represent Kazakhstan.
By the end of the year, Bublik's ranking had skyrocketed 759 places to No. 205.
2017: Two Challenger titles and top-100 breakthrough.
After qualifying for the Australian Open, Bublik defeated 16th-seeded Lucas Pouille in his first Grand Slam match.
In February, Bublik won his first Challenger title at the Morelos Open, defeating Nicolas Jarry in the final.
At Wimbledon, Bublik received a spot in the main draw as a lucky loser. He was defeated by world No. 1 Andy Murray in his first Wimbledon appearance.
Bublik won his second Challenger title in Aptos. In September, after making the semifinals of a Challenger tournament in Istanbul, Bublik broke into the top 100 for the first time, reaching a career-high ranking of No. 95.
2018: Struggles with form.
Bublik struggled for much of the 2018 season, seeing his ranking drop into the 200s. However, he prevailed in his last event of the year, winning eight matches to capture the Challenger title in Bratislava.
2019: Two ATP Finals, Top 50 debut.
Bublik was successful early on in 2019, winning his fourth Challenger title in Budapest, followed shortly by another title at Pau.
Bublik earned his first Masters 1000 win in Miami, winning two qualifying matches and defeating Tennys Sandgren in a third-set tiebreak.
His next tournament was in Monterrey, where he again defeated Sandgren in a third-set tiebreak en route to his sixth Challenger title. This win propelled Bublik back into the top 100.
Bublik won his first Roland Garros main-draw match over Rudolf Molleker, before losing a close four-set contest to eventual finalist Dominic Thiem.
At the tournament in Newport, Bublik reached his first ATP 250 final, where he was defeated by the top seed John Isner.
Bublik had a successful US Open campaign, where he won two consecutive five-set matches. He came back from two sets to love down against Thomas Fabbiano to reach his first Grand Slam third round.
Bublik reached his second ATP 250 final of the season in Chengdu, where he defeated top-30 players Taylor Fritz and Grigor Dimitrov, before losing the final in a third-set tiebreak to Pablo Carreño Busta. The result helped him to reach a new career-high of No. 48 in November.
2020: First Top 10 win.
Bublik reached the semifinals of Marseille, where he lost to Stefanos Tsitsipas in straight sets.
As a Lucky Loser, Bublik reached the quarterfinals of Hamburg, beating Albert Ramos-Viñolas and Félix Auger-Aliassime, before losing to Cristian Garín in 3 sets.
He had his first top 10 victory against Gaël Monfils at the 2020 French Open, but lost to Lorenzo Sonego in the second round.
2021: Another two ATP finals, two Masters quarterfinals, Top 40 debut.
Bublik started his year in Antalya, where he reached his third ATP 250 final, notching his second top 10 victory against Matteo Berrettini in straight sets. He was forced to retire in the final after trailing 0-2 in the first set against Alex De Minaur.
In the Great Ocean Road Open, he lost in the third round to Stefano Travaglia. At the Australian Open, he lost in the second round to Dušan Lajović in 4 sets.
He reached his fourth final in Singapore after beating Altuğ Çelikbilek, Yoshihito Nishioka and Radu Albot. He lost to Alexei Popyrin in the final, 6-4 0-6, 2-6.
At the 2021 Miami Open, Bublik reached the quarterfinals where he lost to Jannik Sinner. This marked his best result at a Masters 1000 event to date.
At the Madrid Open, he defeated Denis Shapovalov and Aslan Karatsev to equal the previous Masters 1000 result, but lost to Casper Ruud. As a result, he achieved his career-high ranking of World No. 40 on 10 May 2021.
International competition.
Bublik has been selected to the Kazakhstan Davis Cup team and has a win/loss record of 4–1 in singles and 1–1 in doubles in Davis Cup competition. He made his debut at the 2019 Davis Cup Qualifying Round against João Sousa of Portugal.
Bublik participated in the 2019 Davis Cup Finals. In his first match, he narrowly lost to Robin Haase of the Netherlands, but he teamed up with Mikhail Kukushkin to win the deciding doubles match. In his second singles match, he defeated Dan Evans of Great Britain, but lost his doubles match with Kukushkin.
Performance timelines.
Singles.
"Current through the 2021 Italian Open"
Record against other players.
Record against top-10 players.
Bublik's match record against those who have been ranked in the top 10, with those who have been No. 1 in boldface