Łasicki is a youth product of Zagłębie Lubin. In 2012, he joined Napoli, initially playing for their Primavera squad.[1] On 18 May 2014 he made his first-team debut, coming on as a substitute for Jorginho against Hellas Verona.[2]
On 19 July 2014, he was loaned Serie C club Gubbio for the season.[3]