Mystery surrounds the identity of a Twitter user posing as Kevin Pietersen after the author of the fake Tweets appeared to end speculation that it was a member of the England cricket camp.
@KevPietersen24's account, called KP Genius, pokes fun at the England batsman, posting Tweets which are meant to be read as though written by Pietersen himself and talk about what a brilliant cricketer he is.
Often portraying him with a huge ego, a typical post reads: "The World hasn't experienced genius like KP's over the last few days since an apple fell on Isaac Newton's head."
The tweets are understood to have annoyed South African-born Pietersen, who is unhappy that some of his Surrey and England teammates are following the account, and he is reported to have instructed his lawyers to try to shut it down.
There are also claims that the author comes from within the England team or backroom staff, but a tweet on Wednesday appeared to rule this out.
KP Genius wrote: "It doesn't take that woman from 'Murder she wrote' to work out that this isn't a team mate of KP. I've been tweeting during Tests!"
The bogus Tweeter's own profile also offers little clues to his or her identity.
It reads: "Confused genius. Future undecided. Love India. *PARODY* Not affiliated with the Cricket Genius Kevin Pietersen or the foodage KP Nuts."
The Twitter storm comes as 32-year-old Pietersen is threatening to quit test cricket.
It is reported that the England batsman would like to play a full season in the Indian Premier League for Delhi Daredevils, earning him in excess of £1m, but under the current terms of his contract with the England and Wales Cricket Board this would not be possible.
On Monday Pietersen's differences with the England camp showed no sign of ending when he said he could not give any assurances that the third Test against South Africa at Lord's next week would not be his last.
Sources close to the player said concerns over the fake Twitter account were not the major issue that needed to be resolved when it comes to deciding his international future.
A source said: "If people think Kevin won't sign an England contract because someone has set up a fake Twitter account ...Come on, do you really believe that? I don't think so."
KP Genius has almost 14,000 followers on Twitter while Pietersen's real account (@kevinpp24) has more than 700,000.