Andrew Johns has thrown his support behind same-sex marriage as Australian sport stars start to voice their support.
The Instagram post showed an old photo of the eighth immortal kissing his former Newcastle teammate Bill Peden, while holding a beer.
The light-hearted photo was captioned: "2 boys from Cessnock will be voting yes @billypeden13. Ha ha sorry bill".
Bill Peden played 190 games for the Newcastle Knights and won two premierships, in 1997 and 2001, with teammate Andrew Johns.
The light-hearted photo comes as Australian sport stars emerge to share their views on the same-sex marriage postal survey.
Ian Roberts, the first star rugby league player to come out as gay, won the commitment of the NRL to publicly support same-sex marriage.
Israel Folau sparked a Twitter backlash by revealing he will not support gay marriage, becoming the first high-profile sportsperson to have publicly announced their opposition.
The majority of Australian sports codes have come out to support same-sex marriage.