Victory cry: Kosta Barbarouses has agreed to personal terms with Sydney FC. Credit:AAP

Sydney FC are on the cusp of prying star striker Kosta Barbarouses away from fierce rivals Melbourne Victory.

Barbarouses has agreed to personal terms on a multi-year deal with Sydney FC in move that will take next season's Big Blue bitterness to a new level.

The Sydney Morning Herald understands a deal between the 29-year-old and Sydney could be finalised in the coming days, which would make Barbarouses the first major signing for the Sky Blues since clinching the A-League title last month.

Despite years of success in the A-League and abroad, Barbarouses proved a revelation for Victory last year when used as a striker instead of a winger. The New Zealand international was the top scorer for Melbourne last season with 14 but has played his last game for the club.