Former NSW star Mark Gasnier will be drafted into camp to give the team's new-look centres pairing a State of Origin crash course.
The Blues will field untested centre duo Tom Trbojevic and Jack Wighton in the three-quarter line on Sunday despite neither playing that spot at NRL club level.
Trbojevic will line-up on the crucial left edge, while Wighton is on the right.
Gasnier spoke to both players when the team gathered in Sydney on Sunday night, but will arrive in time for the Blues' first field session on Tuesday.
He's considered one of the NSW's best centres in the Origin era, having featured in 12 games between 2004-2011.
"Gaz popped in (Sunday) night and had a bit of a chat with the centres, just getting them comfortable," Fittler said on Fox Sports' NRL 360.
Trbojevic, who will mark Queensland counterpart Michael Morgan, has started just four of his 81 games in the centres.
Although he is the incumbent Kangaroos three-quarter.
Wighton, who faces off against Will Chambers, has started 21 of his 143 first-grade appearances in the centres.
"They've both played centres before and (Gasnier's) going to come over actually. He's got a bit of time off, so he's going to come over and hang around the team for a couple of days," Fittler said.
Tuesday's field-session will be one of just three for the Blues in what is a shortened build-up for game two.
Skipper Boyd Cordner said that, with seven changes made from game-one, it is imperative they hit the ground running in order to settle combinations quickly.
"It's really critical, especially with (James Maloney) coming in and being our half," Cordner said.
"I suppose it's good having (Damien Cook), (James Tedesco), and (Nathan Cleary) back as well. But we need to work on our combinations on our left edge.
"It's a new-look side and we'd have to nail each session because it is a short preparation."
Australian Associated Press