Alexander Zverev suffers shock defeat as Alexander Bublik wins maiden ATP Tour title

After four failed finals, the 24-year-old Kazakhstani finally claimed the first title of his career.

It took him just 70 minutes to record a 6-4 6-3 victory over Zverev, with the German struggling to deal with his serve.

Bublik fired eight aces throughout the match and won 86% of his points behind his first serve as he extended his record against Zverev to 2-0.

Following his victory, Bublik paid tribute to Zverev, describing him as a "great player".

"I had four finals and the fifth final I have won against a great player," Bublik said. "It is great. All my game [came] together. I was serving well and returned well and kept my nerve. When I had my chances, I used them."

The victory marked a great comeback for Bublik, who previously lost his season opener to Aleksander Vukic, and then bowed out of the Australian Open in the second round, after posting just five games against Gael Monfils.

Currently ranked outside of the top 150, Bublik can expect to see his rating soar after his maiden title win, with his rank expected to climb to somewhere just outside the top 30.

He's next in action in the Rotterdam Open, where he is slated to face wildcard Andy Murray in the opening round.

Meanwhile for Zverev, his record in finals now sits at 19-10, leaving him anxiously waiting to lift a 20th career title.