Israel Folau was the only player not to kneel before kick-off as his Catalans Dragons lost to St Helens on the weekend the UK Super League restarted its season.
The campaign has been on hold for nearly five months because of coronavirus and every player except the former NRL and rugby union star took a knee before the game in a show of solidarity for the Black Lives Matter movement.
Super League CEO Robert Elstone and referee Ben Thaler also knelt, but Dragons coach Steve McNamara defended Folau's decision to stay on his feet.
"As a group of players and coaching staff, we spoke about it in depth and as a club we are completely against racism and all for equal opportunity," he said after the match.
"But there were some players and staff who made the decision not to take the knee. That was based on personal choice, they have their own reasons for doing that, and we decided we would respect anyone's personal choice on the matter."