The NRL is considering pushing back the start of all of Saturday's pre-season NRL challenges in a bid to deal with NSW's drastic heat.
Temperatures are expected to reach 38 degrees in western Sydney and central NSW on Saturday, sparking fears for players involved in NRL trial matches.
The high-profile Charity Shield clash between St George Illawarra and South Sydney in Mudgee in the state's central-west is one of the matches in question.