Vitezslav Lavicka will finish up as Sydney FC coach at the end of this season after both the club and coach mutually opted to finish his time with the club after three years in charge.
The Sky Blues made the announcement on Friday morning, CEO Dirk Melton saying the club wanted to look for a different coach after a string of disappointing results over the past two months.
Lavicka also wished to return to his native Czech Republic for family reasons as his wife returned there at the start of this season.
"I have enjoyed my time at Sydney FC and I want to continue to do my best and work hard with the players and staff at Sydney FC to be as successful as possible this season," Lavicka said in a media release.
"But for next year I am living too far away from my family and they are very important."
Lavicka led Sydney to the 2009-10 Hyundai A-League title but since the departure of high-profile players like Steve Corica (retired) and Alex Brosque (transfer), the club has failed to hit similar heights.
The Sky Blues missed the finals last season, finishing ninth with just eight wins for the campaign, but hopes were high for this season as marquee man Nicky Carle was free of injury and meant to be complemented by the return of prodigal son Karol Kisel.
However, results, haven't gone their way as Sydney find themselves clinging to sixth on the Hyundai A-League table, despite winning just two of their last 10 games.
A run of results like that is generally unacceptable for a team like Sydney FC, who have a habit of dismissing managers throughout their history in the Hyundai A-League.
Forty-eight-year-old Lavicka, who has formerly managed Sparta Prague, is the club's longest-serving coach, but now finds himself following the same path of Pierre Littbarski, Terry Butcher, Branko Culina and John Kosmina.