A Manchester United fan had his Twitter account closed down because it infringed upon the club's trademark.
United supporter Jack Holt had his @ManUtd_Players account suspended after Twitter sent him a letter saying it had received a number of complaints due to his Twitter avatar.
The account, which has just 222 followers, used a likeness of the Manchester United club crest as its avatar.
Mr Holt set the account up to list every player to have made at least one competitive appearance for either United or Newton Heath, but it was targeted by Twitter because it used the United club badge.
The account has now been re-opened and uses a variation on the club badge instead.
In a statement published by the Manchester Evening News, United said the club keeps track of social media accounts that potentially impinge upon their copyright and takes action when necessary.
"We are dedicated to helping fight the crime of counterfeiting," the statement on the club website said.
"With our legal team, Trading Standards, Customs and law enforcement officers, we aim to ensure that illegal goods never make it to their planned destination and, if required, counterfeiters are arrested and prosecuted."
The United official Twitter account, which was set up last year, has more than two million followers.