The northern club have the option of extending his contract by a year, but Porter wants out. The dispute over the matter is being handled by the Professional Footballer's Association.

Phoenix chief executive Tony Pignata said on stuff.co.nz, "We're trying to see whether there can be any options.

"He wants to come, he's agreed to terms and we're happy to move forward. He wants to move and accept an offer on his house, so it's a messy one."

Porter is the New Zealand club's number one priority as they search for a new striker, but realistically they may have to look elsewhere.

Pignata added, "If we don't get Porter, we get plan B. If we don't get plan B, then I suppose we're back to plan C."