Amazon have withdrawn a CD of Manchester United chants from sale on its website because of complaints that some of the lyrics are offensive.
The unofficial album 'Manchester United Chants' contains a supporters' song aimed at Arsenal boss Arsene Wenger.
A statement from Amazon.co.uk explained that Arsenal had complained about the nature of the chants.
It said: "Arsenal Football Club has provided us with formal notice that content within the album 'Manchester United Chants' is defamatory in nature and we have, therefore, removed this title from our website.
"We would not remove a product from our site because some, or many, people find it to be distasteful or otherwise objectionable.
"We believe it is censorship to make a product unavailable for those reasons."
Wenger was sent off during Arsenal's recent 2-1 defeat against Manchester United after he kicked over a water bottle following a disallowed Gunner's goal.
Arsenal supporters have complained that he was then subjected to this particular chant by some Manchester United fans.
Manchester United's director of communications Philip Townsend said: ""We have gone on the record - several times - about this disgusting chant.
"We don't condone it and have appealed to fans several times in the past - through supporters' groups, the matchday programme and MUTV, but to no avail."