Nebel made his debut for Mainz 05 in the first round of the 2020–21 DFB-Pokal on 11 September 2020, coming on as a substitute in the 60th minute for Levin Öztunalı against fourth-division side TSV Havelse. He assisted Jean-Philippe Mateta's 90th minute goal helping to complete a hat-trick, with the match finishing as a 5–1 win.[2] He made his Bundesliga debut the following week on 20 September, coming on as a substitute for Mateta in the 90+1st minute of Mainz's away match against RB Leipzig, which finished as a 3–1 loss.[3]
On 20 September 2025, he'd score his first goal of the 2025–26 Bundesliga season in a 4–1 win over FC Augsburg.[5] After a five month long goal and assist drought, he'd register his first assist of the season in a 1–1 draw against Bayer Leverkusen, on 28 February 2026.[6] His assist opened the door to a run of strong performances, scoring a goal against Werder Bremen,[7] a brace against Eintracht Frankfurt a week later,[8] and assisting in the Conference League round of 16 and quarter-final against Sigma Olomouc[9] and RC Strasbourg[10] in two 2–0 victories. On 25 April, Nebel scored in a 3–4 loss to Bayern Munich.[11]
International career
Nebel is a youth international for Germany[12] and is eligible to represent the Republic of Ireland under FIFA's grandparent rule through his maternal grandmother.[13]
He made his debut for the Germany under-21 side in 2023 and would take part at the under-21 Euros in 2025, finishing runner-up. Scoring two goals in the tournament, he assisted his fellow Mainz teammate Nelson Weiper in the final and scored a longe range goal himself, carrying his team to extra-time against England, in a 2–3 loss.[14][15]
Technically gifted, Nebel is two-footed and primarily plays as an attacking midfielder, able to play centrally and wide.[17] His strengths are his dribbling, speed, crosses, volleys and powerful shots, which also enables him to play as a winger.[18] Referred to as 'Der Wirbelwind' (whirlwind in English)[19] by some due to his short physique, he is known for his high workrate, also helping his team defensively, which has, on the other hand, also led to three red cards in 2025, setting a record.[20][21]
Personal life
Nebel was born in Bad Nauheim in the state of Hesse. His father Marco Nebel is a football coach himself, having been his first coach.[22] His mother Gitti Nebel is half Irish.[23][24] Nebel's maternal grandmother is from Galway, Ireland.[25]