Complex sentence: Dugandzic failed to break into the first-team at Dinamo Zagreb and therefore returned to Melbourne Knights Iin January 2009 for the 2009 Victorian Premier League season.
Split into simpler sentences: Dugandzic failed to break into the first-team at Dinamo Zagreb and therefore returned to Melbourne Knights. In January 2009, Mate had officially returned to the Melbourne Knights for the 2009 Victorian Premier League season.