The Queensland Maroons finished their Captain's Run yesterday with confidence that they can defend the State of Origin title again.
Star halfback Cooper Cronk did everything asked of him throughout the session and medical staff will assess his condition this morning.
Coach Kevin Walters says he was hopeful that Cronk would be fit to play tonight.
Meanwhile New South Wales skipper Paul Gallen has said to expect fireworks when the states' "genuine hatred" for one another boils over once again.
Gallen anticipated the rule book to be thrown out the window when the two teams come together.
Gallen also expected debutants Josh Mansour, Matt Moylan, Adam Reynolds and Dylan Walker to fit nicely into the Origin arena and the hurt that comes with it.
The Blues will host the Maroons in Origin 1 at 10 tonight.
Source: NRL.com