The FA fined Chelsea and England international left back Ashley Cole 90,000 pounds for his controversial tweet from two weeks ago after he admitted to the governing body's charge.
Cole was also warned over his future conduct, as the English governing body seeks to crack down on inappropriate use of social media among footballers.
Cole's charge was in relation to his angry tweet in response to the official disciplinary report on the John Terry racism case, when his testimony was called into question. The England international wrote: "Hahahahaa, well done #fa I lied did I, #BUNCHOFT***S".
The FA seems determined to eradicate such online indiscretions, having published a set of guidelines for social media use on Wednesday.
The code of conduct includes banning England internationals from tweeting in the 24 hours prior to kick off and on game day, and warns that any messages discussing "the opposition, management or individuals could all result in disciplinary action."
The rules emphasize the players' obligation to act as "role models," and states that England internationals could be stripped of the captaincy should they fail to live up to the required "expectation and responsibility."