SYDNEY FC's joy at re-signing three key players has been tempered with news defender Lucas Neill will miss Saturday's clash with Central Coast with a calf injury.
Neill failed to complete Thursday's training session and will miss at least a week with a minor muscle tear.
The Socceroos skipper first complained of some soreness in his calf towards the end of the Sky Blues' 2-1 loss to Perth Glory on Saturday night but was hopeful it was just tightness.
"He's (Neill) out, he won't play Saturday," Farina told reporters on Thursday.
"He thought it was just tightening up at the end of the Perth game but there's a small tear there.
"Hopefully he should be available for the Victory game (next week)."
Farina said Brazilian defender Tiago Calvano was Neill's likely replacement, to partner Adam Griffiths in the centre of the Sky Blues' back four.
Neill's injury setback came less than an hour after the club announced they had re-signed three more players to their roster for next season.
Skipper Terry McFlynn (one year), emerging midfielder Peter Triantis (two years) and goal-keeper Ivan Necevski (one year) all re-committed to the club, meaning Sydney now have 19 players secured for next season.
There had been some conjecture over McFlynn's future, with the Northern Irishman suffering a loss of form and relinquishing his spot in the team early in the season.
Some sections of the Sydney crowd even jeered McFlynn, who is the only player to have been with the Sky Blues since season one, during the side's poor start to the campaign.
"When I came here I said to him 'there's a lot of people calling for your head'," Farina said of his skipper.
"I said 'I'll judge you on how you perform' and I've been very impressed with him.
"Club's tend to discard or throw away players who have given good service.
"He's a great club man and I believe you have got to have a culture within the club."
McFlynn said he was excited to prolong his Sydney FC career into a ninth season.
"I have always said that I will be at this football club as long as I'm wanted and I'm looking forward to continuing to give everything for Sydney FC," he said.
"Nine years ago Sydney FC gave me a chance in Australia and I love this club. I'm happy my future is settled for next season so I can concentrate on the next four matches as we try to qualify for the finals."
Triantis, who has signed his first professional deal after making the step up from the NYL this season, added: "This is a special day for me and my family.
"I've really enjoyed myself at the club this year and worked hard to get some game time in the A-League after starting the season in the youth team.
"Now I want to make sure I continue to learn and grow as a player and help Sydney FC move back to the top of the A-League."