Sharks centre Josh Morris.

There was no fanfare or official statement when former NSW centre Josh Morris decided to end his representative career, even Blues coach Brad Fittler was unsure if he'd called it quits.

Morris says he'll come out of his representative hiatus for Fittler if he has no alternatives for Origin I on June 5 at Suncorp Stadium.

He has been left bemused by constant speculation around his availability for the Blues after quietly pulling the pin on representative football following the 2017 series loss.

Fittler was unsure on Morris's availability when asked by the media at the Holden State of Origin launch on Wednesday with the Blues facing a crisis in the centres three weeks out from the opening game of the series.

"I did mention it, it was at the start of the 2018 pre-season and one of the journalists asked me what my goals were for the year. I said I pretty much don't see myself playing rep footy anymore," Morris said.

"That was a huge weight off my shoulders not putting that added pressure on myself when it came around this time of the year. Last year I felt good, just being a spectator I enjoyed watching it for the first time so we'll see.

"Now I've been getting stopped in the street being asked about it. It hasn't been a thought for me in the last two years."

Josh Morris celebrates a try for the Blues in 2015.
Josh Morris celebrates a try for the Blues in 2015. ©NRL Photos

Incumbent Blues centre James Roberts is struggling to make the Broncos starting line-up after falling out of favour with Anthony Seibold.

Possible options on the right edge Jack Bird, Joey Leilua and Waqa Blake are either injured or out of form.

Raiders winger Nick Cotric could push his chances after switching to the centres for Saturday night's clash against the Rabbitohs in Canberra.

"I'd be happy for a young fella to get his first jersey but if there's no other options I'll put my hand up," Morris said.

"There's still two weeks to go and plenty of footy to play."

Morris will mark returning Sea Eagles utility Dylan Walker for the Sharks' stoush with Manly on Sunday.

The pair played together for the Blues during the 2016 series and Morris said his former Canterbury coach Des Hasler will have Walker firing.

"No doubt he'll get plenty of boos," Morris said.

"I've been on the receiving end of it as well. It's brutal and I'm sure he'll come under a fair bit of fire.

"I'll be keeping an eye on him to see how he's travelling and if he's tired we'll send some more traffic his way. I think Dessie will have him in the right shape."