John Kosmina has been sacked by Sydney FC after the club's worst ever A-League season. A favourite of the Sydney media, Kosmina still had a year to go on his contract but his future had come under much speculation with the club about to come under the control of new owners.

The club released a brief statement on Saturday afternoon saying it and Kosmina had "mutually agreed to a termination, effective immediately".

"Sydney FC would like to thank John for his contribution to the club over the last 15 months, said Sydney FC CEO Stefan Kamasz.

"We would like to wish John all the best in his future endeavours." understands Sydney FC already have a foreign coach lined up from Eastern Europe to take over the reigns.