Mrzlijak begin Playing soccer at the age of 3 in Bosnia. He moved to the Austria Linz in November 1995 and played for the 2nd Bundess liege team. Mrzljak played professional with F.C.Hucka Thraun for 3 years. He then moved to Waterloo Iowa and start playing for the local traveling team S.C.Krajisnik. Over his tenure he has won several state cup titles, and made it to a natinoal tournament. Mrzljak helped coach boys in Austria at the U12 and U14 age and worked with U10 and U12 kids in Bosnia. Mrzljak enjoys getting out and playing in the adult league. Mrzljak with be the first to say that soccer is his life and he is a student and teacher of the game. Mrzljak is constantly looking to push his players to reach their potenial and play at a high level.