Kacper Potulski (born 19 October 2007 in Gdańsk) is a Polish footballer who currently plays for FC Gdańsk. He currently plays for 1. FSV Mainz 05. Club career Potulski began his football career at the Lechia Gdańsk academy. In 2021, he moved to Legia Warsaw, where he played in subsequent youth teams. In the 2022/23 season, at just 15 years old, he was already playing in the Polish U-19 league for Legia's oldest junior team. In total, he made 8 appearances. In the summer of 2023, Potulski joined the 1st FSV Mainz 05. There he was included in the youth structures of the club. In the 2023/24 season, he played mainly for the U-17 team, but from the following competitions he became an important element of the U-19 team in the U-19 junior league. In addition, he made his senior football debut for Mainz reserves, playing in the Regionalliga Südwest, in a 1:3 loss to 1. Göppinger SV.