Leeds boss Simon Grayson has banned his players from using Twitter. This follows striker Davide Somma posting details about his knee injury on his Twitter account.
The South African international broke the club's rules on social networking by revealing that he would be out for five or six months.
Grayson told the Championshipclub's official website: "There are certain things within football clubs that shouldn't be discussed in a manner like this."
He added: "In the case of Dave's injury, I wanted it to come out in the right manner when everything was 100 per cent confirmed and all the right people knew.
"The guidelines are there for the lads to follow, but if they can't be followed then I'm simply not having it. I have told them I don't want them using it."