The Rugby Football Union has issued guidelines to England internationals regarding social media behaviour ahead of the Rugby World Cup.
A 24-point guide obtained by The Telegraph states that players should not post online immediately after a disappointing loss or if they are in a bad mood.
It adds: "Remember you will be regarded as a role model by the public and the media whether you like it or not. Once you've posted something online, it can always be tracked back to you. Even if you delete it."
The guide also encourages players to engage with fans, but warns of quarrels with opposition supporters and online trolls.
"Engaging in a public Twitter argument is a battle you won't win. You'll only end up looking foolish (you'll also likely boost the other person's follower count) as well as keeping the story going. Serious abuse should be reported to the RFU Communications Department," it states.
"Do not use abusive, indecent or insulting words yourself. This includes any inappropriate reference to ethnic origin, colour, race, nationality, faith or religion, gender, sexual orientation or disability."
Furthermore, the RFU suggests that players should not post pictures of themselves smoking or drinking or involving any nudity, and avoid the illegal act of using their mobiles while driving.
On a more positive note, England's squad are encouraged to thank fans for their support and share photos when the team takes part in community projects.
England's next clash is due to take place against France at Twickenham on August 15.
