QRL Chairman Bruce Hatcher will announce the team at Rugby League Central Queensland at Milton, Brisbane, alongside Head Coach Kevin Walters and Chairman of Selectors Gene Miles.
Interest is sure to focus on a replacement for utility Michael Morgan, who is out for the season after injuring a biceps against the Warriors on Friday, June 15.
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After a 22-12 loss to NSW in Game I in Melbourne on June 6, the Maroons will be looking to square the series at Sydney's ANZ Stadium on Sunday, June 24, from 7.40pm (AEST).
NSW announced their 20-man squad on Saturday night.