Zsombor Gruber

Zalaegerszeg

On 9 February 2024, he was loaned to Zalaegerszegi TE.

MTK Budapest

On 14 February 2025, he was loaned to MTK Budapest FC. He made 18 appearances and scored two goals in the 2024–25 Nemzeti Bajnokság I season. On 1 March 2025, he scored a goal in a 5–1 victory over Újpest FC at the Szusza Ferenc Stadion. On 17 May 2025, he scored a goal in a 2–1 defeat from Diósgyőri VTK at the Diósgyőri Stadion. All in all, he made nine league appearances in MTK and scored two goals. He suffered a thigh injury while playing for MTK and he had to ret for five weeks.

Ferencváros

On 1 July 2025, he came back from loan to Ferencváros. Thanks to his performance at MTK, Robbie Keane added him to the team playing preparing for the Champions League qualifiers. On 2 August 2025, he scored his first goal for Ferencváros in a 3–0 victory over newly-promoted Kazincbarcikai SC in the 2025–26 Nemzeti Bajnokság I season. On 9 August 2025, he scored twice in a 4–1 victory over Nyíregyháza Spartacus FC in the 2025–26 Nemzeti Bajnokság I season. He scored the winning goal in a 1-0 victory over Paksi FC in the 2025-26 Nemzeti Bajnokság I season at the Fehérvári úti Stadion on 1 February 2026. On 9 May 2026, he won the 2025–26 Magyar Kupa season with Ferencváros by beating Zalaegerszegi TE 1–0 in the 2026 Magyar Kupa final at Puskás Aréna.

La Louvière

On 14 August 2026, Belgian Pro League club RAAL La Louvière signed Gruber. He debuted in a 2–1 defeat from KRC…

He was first called up for Hungary in 2024 against the Netherlands and Germany in the 2024–25 UEFA Nations League A season. In an interview with Nemzeti Sport, he said that: "I still can't believe it". He debuted in the national team on 19 November 2024 in a 1–1 draw against Germany at the Puskás Aréna in the 2024–25 UEFA Nations League A match. He scored his first goal in a 2–0 victory over Armenia in the 2026 FIFA World Cup qualification match at the Puskás Aréna on 11 October 2025.

Club

As of match played 5 October 2025

International

As of match played 11 October 2025

Scores and results list Hungary's goal tally first, score column indicates score after each Gruber goal.

Ferencváros

Nemzeti Bajnokság I: 2024–25 Individual

Nemzeti Bajnokság I Player of the Month: July–August 2025