Andrew Johns threw a scare into the NSW State of Origin camp when he joined the growing list of walking wounded.

The NSW captain and chief playmaker ended the Blues' hour-long training session 10 minutes early, limping off to ice a tender right calf muscle.

Johns was one of four injury worries with centre Jamie Lyon (hamstring) unable to join in the first hit-out since resuming camp on Monday and back rowers Luke Ricketson (hip) and Craig Fitzgibbon (eye) confined to the gym.

But coach Phil Gould said he and his medical staff were unconcerned, preferring to have their stars in cotton wool rather than risk further injury.

There was no thought of having shadow players drafted as Gould prepared his squad for a fierce mental battle in Origin II at Telstra Stadium next Wednesday night.

"It's just a bit sore," Johns said of his kicking leg.

Fitzgibbon remained the most doubtful, but received some good news from the specialist, who said the 26-year-old didn't need any further surgery for his fractured right eye socket.

"It's good to know that everything should be okay now and I'll be able to rip into some training and get ready for Wednesday night," Fitzgibbon said.

"As long as I'm not going to risk any further damage, which is what he said, and I'm happy with that."

Lyon, who has been given until Sunday to prove his fitness, said he was more than confident of playing after running at three-quarter pace.

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