Ryan Bertrand, a late addition to the England squad to replace Arsenal's Kieran Gibbs, has apologised over the use of an expletive on Twitter.
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Bertrand, 22, withdrew from the squad with swollen glands but will return along with fellow Chelsea star Frank Lampard for Tuesday's match with Poland.
Initially he hit back at criticism over his withdrawal and tweeted: "Just to clarify.... Its not a "sore throat" Im ill.swollen glands in my neck... And constant headache for 3 days now and freezin cold.
"Do you think a "sorethroat" could stop me being apart of a match for my club or country? #yourf******nuts this is what every boy dreams of".
But Bertrand later apologised for swearing in the tweet just a day after the FA gave players a code of conduct, which included social media guidelines.
"Sorry if i offended anyone by swearing as i don't encourage that type of language," Bertrand tweeted. Was just disappointed at the thought of people thinking i only have a sore throat.. which is not the case..."
Manager Roy Hodgson was asked about the incident and refused to condemn the Chelsea youngster.
"What he was saying is quite laudable," he said. "He really wants to play for England and is really angry it has been suggested it is merely a sore throat when he is actually quite ill. But he shouldn't use a swear word."
Yet Hodgson acknowledges that there is going to be a problem in future with social networking as it has become such an important part of player's lives/
"It would be a very nice world if we all walked around and there were no swear words," he said. "But you only have to put the TV on to hear as many swear words as you would like.
"You shouldn't do it but you won't get me to take it as something criminal. He has already apologised for it but it goes to show what a problem we will all have with Twitter. Football players are going to write on it the way they talk and sometimes they will use wrong words."
Bertrand, though, will not face any action from the FA after his apology.
"The FA's governance department consider any tweets [from participants] in their full context before deciding on any disciplinary action," an FA spokesman said. "Having considered the context in this case, the FA's governance department are satisfied that no further action is required."