Carlton has been dealt another blow ahead of its blockbuster against the Western Bulldogs, with Adam Cerra ruled out of the clash.

He’s entered the AFL’s Health and Safety Protocols.

The gun recruit joins Jack Martin on the sidelines after a small outbreak at the club.

Michael Voss won’t be coaching the Blues, either.

The Blues said all other players returned negative test results this morning.

Cerra’s absence will be a huge blow for the Blues, with the former Fremantle midfielder sensational in his first game at Carlton.

He had 30 disposals and kicked a goal.

But it’s not all bad news for the Blues.

Sam Walsh will be selected to make his return from injury against the Bulldogs.

(Photo by Dylan Burns/AFL Photos via Getty Images)