Former world heavyweight champion Tyson Fury appears to have announced his retirement on social media.

The 28-year-old has retired previously, only to then reverse his decision.

This time he has spoken of an "epic journey" reaching "the end".

Fury has not fought since his stunning win over Wladimir Klitschko in Dusseldorf in November 2015, due to a combination of drug issues and mental health concerns.