Kacper Karasek has departed from Motor Lublin and signed a contract with Radomiak Radom. The transfer was a free transfer as Motor Lublin did not extend his expiring contract. The club announced that the 24-year-old midfielder's contract is valid until 30 June 2028. In a video on Radomiak's social media, Karasek said that this is his place.

A report from Szymon Janczyk of Weszlo.com states that 24-year-old Polish attacking midfielder Kacper Karasek is set to leave Motor Lublin for Radomiak Radom. He will move within the league on a free transfer, as his contract with Motor Lublin expires at the end of June and will not be renewed. Karasek's departure is one of several from the club, which is undergoing significant personnel changes. He has been capped four times by the Poland U21 national team. In the 2025/2026 Ekstraklasa season, Karasek made 14 appearances and scored one goal. Transfermarkt lists his current market value as €300k.