Bertrand is the second Chelsea and England player to apologise for comments made on Twitter, following
Ashley Cole's misconduct charge
for his reaction following the publication of the Football Association's investigation into John Terry's clash with Anton Ferdinand.
Cole's tweet came after his evidence to an independent FA commission - which found Terry guilty of racially insulting Ferdinand during a match between Chelsea and QPR last season - was questioned.
Bertrand said: "Sorry if I offended anyone by swearing as I don't encourage that type of language.
"I was just disappointed by the thought of people thinking I only have a sore throat - which is not the case."
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