Instrumental Blue Adam Saad will miss Sunday's clash against Hawthorn after entering the AFL's Health and Safety protocols.
Saad will be replaced in the team by debutant Jordan Boyd, a selection in the 2021 NAB AFL Mid-Season Rookie Draft.
The 23-year-old has impressed at the VFL level since joining the club, making his mark as a rebounding defender.
Prior to signing at the Blues, Boyd spent time on Footscray’s VFL list, previously playing at Spotswood in the Western Region Football League.
Adam Cerra, who was previously under the health and safety protocols, will return to the side on Sunday afternoon, alongside Lachie Plowman.
Saad, who entered the protocols on Saturday, will be required to isolate for seven days. Carlton's Round 4 match against Gold Coast is fixtured for Sunday April 10 at Metricon Stadium.
The Blues are currently 2-0 heading into the clash, looking to extend their undefeated run for another round.