CARLTON star Jacob Weitering believes the Blues let their fans down in capitulating to Hawthorn on a day of injury carnage that left their season hanging by a thread.

The Blues are sweating on scans to star forwards Harry McKay (quad) and Charlie Curnow (ankle), who along with Jack Martin (hamstring) and Lachie Fogarty (collarbone), failed to complete Sunday's 74-point smashing to the Hawks at the MCG.

Carlton will publicly release the extent of the injuries on Tuesday afternoon, with the Blues dropping to ninth ahead of the final two home-and-away rounds.

Weitering admitted it was a tough review of their fifth loss in six games.

"Disappointing is probably the way to look at it," the key defender said on Tuesday.

"Certainly lost some connection. There wasn't a whole lot of communication (on the ground). 

"There was some honest conversations about what we can do better as individuals, as line groups, and as a team. 

"It's certainly not the way we play our football. 

"And I guess, in a sense, we certainly let ourselves down, the fans, and we've got a massive opportunity to make it right this week."

As difficult as the loss was to take, Weitering urged for calm.

If Carlton wins its last two games against West Coast (away) and St Kilda (Marvel Stadium), it can still play finals for the second-straight season.

Three weeks ago the Blues were sitting second and seemed destined to secure a top-four finish for the first time since 2000.

During the middle of last season Carlton slumped to 4-1-8 and they memorably surged home to make a preliminary final.

"Last year everyone was saying blow the place up again," he said.

"They were calling for Vossy's (Blues coach Michael Voss) head halfway through and saw what happened. 

"Our best is certainly good enough if we play the right way."