Lechia Gdańsk
Born in Koszalin, Mila grew up playing for local teams Gwardia Koszalin and Bałtyk Koszalin before he moved to Gdańsk at the age of 16 and started training with the Lechia Gdańsk youth teams. Lechia Gdańsk at this time were known as Lechia-Polonia Gdańsk due to the merger between Lechia Gdańsk and Polonia Gdańsk.