The Western Bulldogs are today mourning the loss of their former mascot, Sid the Bulldog, after he passed away overnight.

The beloved nine and a half-year-old British Bulldog served as the official Club mascot since 2010 where he was a regular feature at home games, much to the delight of the Bulldog faithful, before stepping down from official duties in early 2017.

Sid was rushed to Wyndham Veterinary Clinic late on Tuesday night with breathing difficulties.