New NSW five-eighth Walker will stand silently when Advance Australia Fair is played before a sold-out Suncorp Stadium and Addo-Carr said on Wednesday he would proudly do the same.
"I respect what he said," Addo-Carr said of Walker. "We are Australians too. Indigenous people were the first people here, on the land.
Addo-Carr was part of the same Indigenous All Stars team as Walker in February when the South Sydney playmaker stayed silent as the national anthem played before their win over the Māori All Stars at AAMI Park.