The imposing Czech target man started his professional career with Marila Příbram. After a short spell with Marila, Slepicka moved to Slovan Liberec. His technique, skill and trickery gave him 86 appearances for Slovan, which encouraged giants Sparta Prague to plan a move for Slepicka. After moving to the club in 2005, he started 55 games for the Czech outfit, scoring 19. He also wore the prized number 10 jersey for Sparta Prague. After a three-year spell, Slepicka moved to Dinamo Zagreb and showcased his goal scoring abilities to pure genius.
He scored 11 goals in 25 appearances for the Croatian giants. Slepicka has also enjoyed time in the Champions League with both Sparta Prague and Dinamo Zagreb.
