This, in light of Manchester United defender Rio Ferdinand having copped a £45,000 fine after the FA took action over his response to a "choc ice" tweet.

He was charged by the governing body in July for bringing the game into disrepute and making improper comments on Twitter in the wake of the John Terry trial.

Ferdinand had responded to a remark on the site labelling Chelsea defender Ashley Cole as a "choc ice" following his appearance in court as a defence witness for Terry.

Ferguson, who remains astounded by the Twitter craze, believes the FA's ruling on Ferdinand was bound to transpire, although the United boss reckons his player was made an example of.

"It was almost certain to happen," the Scot said. "They (the FA) want to close the door on this kind of thing.

"What surprises me is that other players have been twittering for ages and have never been challenged by the FA.

"His status in the game has caused that and who he plays for is maybe another issue."

Ferguson added: "Twitter; I do not understand it. I don't know why anybody can be bothered with it.

"But it is there and as a club we have given instructions to the players that they cannot talk about Manchester United.

"Rio is mature but he still has to remember that one word can make a difference - and you can't take it back."