NSW assistant coach Brad Fittler says he expects a much-improved performance from the Maroons in game three with the return of Cooper Cronk to the side, but the Blues will do everything to test out his freshly-healed arm.

"We are definitely going to have to run some traffic at him (Cronk), because it has only been six weeks since he broke his arm," Fittler said.

"He (Cronk) has been a brilliant player for the last four or five years, so he will make a big difference … his combination with the hooker and fullback is massive."