England's football team management has warned players to be careful when using Twitter at Euro 2102 while Spain and Denmark have banned their squads from using social networking during the tournament.
Teams fear that off the cuff remarks on Twitter could cause problems during this month's finals in Ukraine and Poland.
The England captain Steven Gerrard says the players had been told not to tweet unneccessarily.
Earlier, the Spanish midfielder Cesc Fabregas tweeted that the team was forbidden to use social networks and he hoped that his next tweet would be of a photo showing him holding the tournament cup.
