Pezzetta has skated in nine straight games for the Canadiens but will be scratched on Saturday with Chris Wideman dressing as a seventh defenseman.
Barre-Boulet has been a healthy scratch most of the time since returning from Seattle (via waivers), so he'll go to the AHL to get some playing time.
Caufield struggled with the Canadiens early in the season, failing to score a goal with one assist in 10 games. He went to Laval and picked up five points (2G / 3A) in six games. He should be plugged directly into the lineup Thursday vs. the Penguins.
Barre-Boulet will sit with Boris Katchouk returning from a lower-body injury. Barre-Boulet had previously played in seven straight games, scoring one goal with two assists.
Anderson was not on the ice for Tuesday's morning skate and will be a game-time decision vs. the Kings due to a non-COVID-19 related illness. Expect Adam Brooks to replace him in the lineup if he can't play.
Dvorak was not on the ice for Monday's practice and will be a game-time decision Tuesday vs. the Kings. Monitor his status when the Habs hit the ice for warmups at 6:30 PM ET.
Newhook earned his way back to the NHL by torching the AHL with 11 points (4G / 7A) in 10 games. Sampo Ranta was sent to the AHL on Monday, so he will take his spot on the roster.