Born in Lommel on 3 June 1999 and named after the French footballer Zinedine Zidane, whose nickname was Zizou, Bergs began tennis lessons at three and turned professional in 2018. He built his career on the Challenger Tour, winning eight titles, and made his Grand Slam debut at Wimbledon in 2022. In 2025 he reached his first two ATP finals, in Auckland, where Gaël Monfils beat him, and 's-Hertogenbosch, and helped Belgium past Chile in the Davis Cup qualifiers. He has been coached by Jan de Witt since July 2025. His first ATP title came at Eastbourne in June 2026, lifting him to a career-high No. 37. Days later at Wimbledon he beat the 27th seed, Ugo Humbert, again in the first round and reached the third round for the first time, where Arthur Fery beat him.
On grass
Wimbledon singles
Third round 2026; first round 2022 as a wildcard, 2024 and 2025, when João Fonseca beat him
Wimbledon 2026
Beat the 27th seed Ugo Humbert 6-2, 7-5, 4-6, 3-6, 6-3 and the qualifier Jaime Faria; lost to Arthur Fery on Court 18, 6-2, 5-7, 6-2, 6-7 (3), 6-7 (5-10), after more than four hours
Eastbourne
Champion 2026, beating the sixth seed Ugo Humbert 3-6, 6-1, 6-4 in a final stopped by rain early in the first set on Saturday and finished on Sunday
's-Hertogenbosch
Runner-up 2025: beat Mark Lajal and Reilly Opelka 6-1, 6-4, then lost to Gabriel Diallo 7-5, 7-6. Second round 2024 as a lucky loser, beating Tim van Rijthoven before losing to Alex de Minaur
Ilkley Challenger
Champion 2022 from qualifying, beating Jack Sock 7-6, 2-6, 7-6 in the final after saving a championship point
Wimbledon 2024
Lost to Arthur Cazaux 6-1, 6-4, 6-7, 6-7, 7-6 after winning two tie-breaks to level from two sets down
Leading grass titles only: the grass majors, tour-level grass events since 1968 and the leading grass championships before 1968. †single source; ‡ sources disagree. Roll of champions
"Straight away, I won my biggest title."
Anecdotes
The person behind the player.
Burundi, aged 15
Five sizes too big
Named after Zinedine Zidane because his parents had expected a girl and had no boy's name ready, Bergs travelled to Burundi at 15. Children there played with his kit, "even if it was five sizes too big", and he realised how much he had by comparison. "It really opened my eyes," he said, and he resolved to help in his own small way.
Ranked 207th, Bergs drew Ruben Bemelmans, a former world No. 84 who had begun coaching him three weeks earlier, in the first round of qualifying. Bergs won 7-6, 6-4 and said he felt bad about it, as Bemelmans was near the end of his career. "It was emotional, but I really had fun," Bemelmans said. Bemelmans stayed on as coach, and Bergs went on to win the title.
In the final he beat Jack Sock, a former world No. 8, 7-6, 2-6, 7-6, and with the title came a wildcard into the Wimbledon main draw, his first at a major. He announced it on Instagram: "WIMBLEDON MAIN DRAW WILDCARD!! Whuuuutttt."
In the semi-final he beat the big-serving Reilly Opelka 6-1, 6-4. "There is not much to do against Reilly except keep the pressure high," he said on court. "I served well, returned well, managed the match well, so I'm really happy." The run lifted him 14 places, although Gabriel Diallo beat him in the final.
After an early exit at 's-Hertogenbosch he decided he had been trying too hard and resolved to take things more lightly. Rain stopped the final against Ugo Humbert early in the first set; on the Sunday he won 3-6, 6-1, 6-4, the first ATP title on grass by a Belgian man. "Normally we say finals are not for playing, they are for winning," he said. "Now I can finally say: that is my title."
Against Arthur Fery in the third round he won the first and third sets, then lost a fourth-set tie-break and the deciding tie-break 10-5 after more than four hours. "Several times I felt I was the best player on the court, and still the match slipped away from me," he said. "In the end you have to accept it was not good enough. He deserves his win."