Carlton will continue their late-season push for an AFL finals berth without Harry McKay after sending the key forward for arthroscopic surgery on his injured right knee.
It will mean McKay is sidelined for six to eight weeks, ruling him out of action for the rest of the home-and-away season.
The 2021 Coleman medallist's only chance of playing again this year is if the Blues gatecrash the top eight.
That prospect seems far more likely than it did a month ago, with Michael Voss's side back in form and hot favourites to rack up a fifth consecutive win when they host lowly West Coast this week.
"While it is disappointing for Harry that he will be sidelined, we know he will be the ultimate professional and continue to have a positive influence around the club during this period of the season," Carlton football boss Brad Lloyd said in a statement.
"One of the main things the playing group prides itself on is stepping up and everyone playing their role when needed.
"That opportunity will present again in Harry's absence.
"We'll continue to lean on our even contribution across the board as we lock in for this Saturday's game against West Coast."
The fact that McKay avoided an anterior cruciate ligament injury means that even if he doesn't play again this year, he will be fit to attack the 2024 pre-season.
Carlton could be forced to make three changes to their team to face West Coast, with McKay ruled out and midfielder Adam Cerra in doubt because of hamstring tightness.
Jordan Boyd is facing suspension over a dangerous tackle on Port Adelaide's Darcy Byrne-Jones.
The small defender was referred directly to the tribunal and will appear on Tuesday night.
Skilful playmaker Zac Fisher (hamstring) is a chance to return from injury against the Eagles.
