NSW State of Origin star Mark Gasnier says he'll be doing what's best for himself as he seeks to resolve a contractual issue that has him considering a switch to rugby union in France.

Gasnier, who played a pivotal role in two of NSW's tries in their 18-10 series-opening victory over Queensland, spoke for the first time since the revelation he was acting on a out clause in his deal with St George Illawarra.

"It's not about a decision," he told reporters.

"It's a situation that I've been dealt with that I have to react to.

"It's not a matter of me putting my hand up and being a sook or anything like that. There's stuff that's got to be resolved.

"I would have liked to have dealt with it in-house."

Asked what it would mean to give up league after Wednesday night's passionate win to the Blues, he said: "I'm not giving it up, I'm reacting to what I've been dealt with.

"And if I go it's not out of bitter(ness), I'm not going to blame anyone, I'm not going to hold anyone responsible, I'm just going to do what's best for me.

"It's a great game, it's unbelievable, especially to be playing in this series, it's Bedsy's (captain Danny Buderus') last.

"League's great. It's not about bagging league or anything like that. It's what it is."

Gasnier would not reveal a timeframe on the resolution of his issue, reportedly the non-payment of $350,000 in sponsors' fees that were part of his deal to remain in the NRL two years ago.

"I don't want to bring pressure on the club and series like this, I don't want it to be about me," he said.

Blues coach Craig Bellamy said the centre's contribution to Origin camp as a senior player had been crucial.

"We don't want to be losing the elite players when they're at the peak of their powers, to England or to other codes," Bellamy said.

"We need to keep those guys in our game."

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