Filip Mrzljak

Mrzljak came through the Dinamo Zagreb youth academy without playing a first-team game for the club. A loan to NK Radnik Sesvete brought him 20 appearances, and in 2012 he moved to NK Lokomotiva Zagreb. Lokomotiva finished as runners-up in both the Croatian First League and the Croatian Cup. He also played for Croatia at every youth level from under-14 to under-21, though he has not been capped by the senior side.

In 2015 he moved to Romania. At Pandurii Târgu Jiu he played 51 matches and scored five goals, and the club reached the Romanian League Cup final in 2014/15. At Astra Giurgiu he made 63 appearances and scored twice, and the team reached the Romanian Cup final in 2018/19.

He joined FC Ufa as a free agent in November 2020. He scored four goals in his first spell, and in May 2021 he extended his contract until June 2023. He left after the 2021/22 season, then played for HNK Gorica, where he made 31 appearances without scoring.

Mrzljak returned to Ufa on 7 August 2025 on a contract until 30 June 2026. He played 20 games in the FNL, the Russian second tier, and scored two goals. In July 2026 he signed for First Vienna FC in the Austrian 2. Liga on a free transfer.