FREMANTLE has been unable to speak directly to Shane Yarran, but the recently retired Docker has told the club an expletive-laden rant which appeared on Facebook under his name did not come from him.
On Friday, two posts from the account criticised the club and a Dockers player, who AFL.com.au has chosen not to identify.
In a statement provided to AFL.com.au, Fremantle said Yarran had told the club he did not have a Facebook account.
"Despite numerous attempts the club has not be able to talk directly to Shane Yarran regarding posts made from a social media account in his name," a club spokesman said.
"However, last night Shane advised a club official via SMS that he did not have a Facebook account.
"The account from which the posts were made has now been deactivated."
Yarran retired on Monday after taking personal leave from the club since the start of December following a charge of unlawful wounding.
The 27-year-old also made a brief court appearance earlier this month for a charge of aggravated common assault, which he intends to plead not guilty to.
Yarran, a mature-age recruit to the Dockers at pick No.61 in the 2015 NAB AFL Draft, played six senior games.