Sydney FC turned their attention to the state league in their search for a left back with Sydney Olympic defender Troy Danaskos set to become the final addition to their squad list.

The 22-year-old left back is close to securing a move from the NSW Premier League to the A-League and could finalise a transfer to Moore Park in the coming days. Danaskos has been training with Sydney FC since last week and has been on the radar of the club for a number of months as a result of his performances in Olympic's run to the NSW Premier League grand final this season.

Troy Danaskos (R) has starred for Sydney Olympic in the NSW Premier League. Credit:Getty Images

Sydney FC are yet to negotiate personal terms but it's understood Olympic agreed to a deal to give Danaskos the green light to move to the Sky Blues.

Should he join the harbour city club, it will rule out Sydney's potential signing of former West Ham and Sunderland defender George McCartney. The Northern Irishman was in discussions with the Sky Blues but talks are understood to have stalled as the 33-year-old cooled on the idea of moving to Australia.