Sydney FC are considering filing a complaint with football's governing body FIFA over a Japanese club's attempts to snare striker Alex Brosque.
Sydney FC say that Japanese team Shimizu S-Pulse have breached and shown disregard for FIFA regulations in recent dealings involving the star striker.
The 27-year-old is a contracted Sydney FC player until the end of the 2013-14 A-League season, yet it's been confirmed to the Sky Blues that representatives of the Japanese club spent time in Sydney several weeks ago where they held discussions with the player.
Shimizu subsequently agreed to all commercial terms and provided the player with a contract to be executed.
It was only last week that the Japanese outfit approached Sydney FC, but according to the defending A-League champions, they did not seek permission to talk to Brosque but rather made Sydney an offer.
"A-League clubs have rights in these situations and we will not stand by and let foreign clubs disregard FIFA regulations when approaching our players," said Sydney FC vice chairman, Scott Barlow.
FIFA regulations state that a club intending to enter into negotiations with a player must request and receive approval from the player's current club before entering into any negotiations with him if his contract with the present team continues for a period longer than six months.