Men's and women's teams at Sydney wore Keep Rugby Clean T-shirts on Saturday to highlight the ongoing fight against doping.
World Rugby adopts a zero-tolerance position on doping and implements a rigourous testing and education policy.
World Rugby Anti-Doping General Manager Mike Earl said: "Keep Rugby Clean day is the focal point of World Rugby's anti-doping campaign and is a show of unity against doping by all involved in our game.
"Players, referees, team staff, officials and everyone involved in the event here in Sydney wore the Keep Rugby Clean T-shirts to show our collective will to keep doping out of our sport and to promote the spirit of integrity to all aspiring players in the crowd or watching around the world".
World Rugby has given anti-doping education to more than 15,000 players in recent years and continues to be committed to protecting clean athletes through intelligent testing and values-based education.
Ahead of the Olympic Games in Rio last year, World Rugby carried out the most scientific and comprehensive pre-event programme ever operated in the sport.
The Keep Rugby Clean campaign is continuing to educate players of all ages about the dangers associated with taking banned substances.
Players and participants in the sport are encouraged to visit the Keep Rugby Clean website to learn more.