Josh Dugan has urged Andrew Fifita to find inspiration in the Kangaroos jersey as the Cronulla prop ponders his future in rugby league.
Fifita said last week he was exploring the possibility of a switch to rugby union because he feared the NRL could rip up his playing contract at any moment.
The Sharks premiership winner was banned from selection from coach Mal Meninga's 24-man Australian Four Nations squad because of off-field issues.
Dugan, who played in Australia's 26-6 win over New Zealand in Perth on Saturday, has walked a similar path to Fifita.
The St George Illawarra star's future in the NRL was up in the air after he was sacked by Canberra at the start of 2013.