West Ham have been charged with a breach of anti-doping rules, the Football Association has announced.
The FA said Premier League club West Ham was alleged to have "failed to ensure its 'club whereabouts' information was accurate on three occasions within 12 months".
West Ham have until February 27 to respond, the FA added.
West Ham said the FA investigation did not involve any offence by a player.
A club spokesman said: "The breach relates to administrative oversights on the FA's whereabouts system, for example a player's address had been registered and the house number digits transposed, and the club will be responding to the FA in due course.
"We would like to make it clear that the breach is a club administrative matter and does not concern any of our players."
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