Adrian Siemieniec (born 13 January 1992) is a Polish professional football manager and former player who is currently the manager of Ekstraklasa club Jagiellonia Biaà Âystok.
A native of Czeladà º, Poland, Siemieniec joined the academy of Polonia Bytom as a youth player. He retired at a young age after coming to the conclusion that he would not be able to break into professional football.
Siemieniec's coaching career started when he was a student at the University of Physical Education in Katowice. He joined Rozwój Katowice's staff as an intern, and remained there until 2014 as an assistant coach under Mirosà Âaw Smyà Âa and Dietmar Brehmer, while simultaneously managing Rozwój's reserve team in his final year in Katowice.
In 2014, he joined Chrobry Gà Âogów as an assistant manager to Ireneusz Mamrot, and would later follow him to Jagiellonia Biaà Âystok in 2017, Arka Gdynia in 2020, à ÂKS à Âódà º in 2021 and Jagiellonia again in 2021.
On 14 January 2022, Siemieniec was appointed manager of Jagiellonia Biaà Âystok II. On 4 April 2023, following Maciej Stolarczyk's dismissal, he took on the role of manager of Jagiellonia's senior team until the end of the season. At the age of thirty-one, he became the youngest manager in the Polish top flight. In January 2024, Jagiellonia prolonged Siemieniec's contract for an additional two years.
In the 2023âÂÂ24 season, Siemieniec led Jagiellonia to an unlikely title win, clinching their first-ever top-flight championship with a 3âÂÂ0 home victory over Warta Poznaà  on the last matchday of the season. For this accomplishment, he was voted the Ekstraklasa Coach of the Season.
Under Siemieniec, Jagiellonia qualified for a group or league phase of a UEFA competition for the first time, even reaching the quarter finals of the 2024âÂÂ25 UEFA Conference League where they were eliminated by Real Betis.
Jagiellonia Biaà Âystok
Individual