Adelaide United midfielder Steven Lustica has sought a release from the A-League club to join rivals Brisbane, but the Reds have refused his request.

Adelaide United have turned down a request for release by midfielder Steven Lustica to link up with A-League rivals Brisbane, claiming he’d already verbally agreed to stay at the club next season.

Lustica has sought to have his current contract with the Reds terminated “immediately” so he can join the Roar.

The 22-year-old joined Adelaide from Croatian outfit HNK Hajduk Split for the 2013/2014 season and, according to the club, was recently offered an extension.

“At the conclusion of these negotiations by way of email from his agent and a verbal commitment from Steven, he had agreed to extend his contract with Adelaide United for the 2014/15 Hyundai A-League season,” the Reds said in a statement on Wednesday.

“That was followed by an approach from Brisbane Roar and his position has since changed and he has now indicated that he would like to immediately terminate his current contract to join the Brisbane Roar.”

But the club has refused to release Lustica.

“This situation is totally different to a transfer based matter where club and player alike benefit from a potential move,” it said.

“The club will continue to seek to resolve the matter with the player and or his agent and until that time there will be no further comment on the matter.”