Dennis Jastrzembski

Club career Hertha Jastrzembski made his professional debut for Hertha BSC on 20 August 2018, appearing in the first round of the 2018–19 DFB-Pokal against 3. Liga side Eintracht Braunschweig. He was substituted on in the 75th minute for Salomon Kalou, and assisted the winning goal by Vedad Ibišević in the 83rd minute, with the match finishing as a 2–1 away win for Hertha.

Loans On 31 January 2020, SC Paderborn 07 announced the signing of Jastrzembski on a loan deal lasting until 2021.

On 27 January 2021, he moved to German club SV Waldhof Mannheim on a loan deal until the end of the season.

Śląsk Wrocław On 25 January 2022, Jastrzembski moved to the country he most recently represented, Poland, signing a three-and-a-half-year deal with Ekstraklasa side Śląsk Wrocław.

Fortuna Düsseldorf On 23 August 2023, he signed with Fortuna Düsseldorf.

Sturm Graz II On 3 September 2025, Jastrzembski joined Sturm Graz's reserve team, playing in the Austrian second division.

Olimpia Grudziądz On 5 August 2026, he was announced as the new signing of Polish third division club Olimpia Grudziądz.

International career Jastrzembski was capped for Poland's under-15 team in 2015, where he appeared made four appearances and scored one goal. Later that year, he was capped four times for the Poland national under-16, scoring one goal.

In 2016, Jastrzembski switched to Germany, first appearing in the under-16 team. In 2017, he was included in Germany's squad for the 2017 UEFA European Under-17 Championship in Croatia, where Germany were eliminated in the semi-finals. Later that year, he was included in Germany's squad for the 2017 FIFA U-17 World Cup in India, where Germany were eliminated in the quarter-finals.

In 2020, he switched back to Poland and was called up to the under-20 team in March that year. He made his first appearance for Poland U21 off the bench in a 2021 UEFA European Under-21 Championship qualifier against Serbia U21 on 9 October 2020.

Personal life Jastrzembski was born in Rendsburg, Schleswig-Holstein and is of Polish descent. His brother Chris is also a footballer.