The Blues are reportedly considering a massive risk of playing someone that hasn't had any competitive game time for over three months as they head into Round 23 down some serious manpower.

Zac Williams is a chance to make his return from a serious calf injury in order to bolster his side's chances of playing finals footy this year.

Carlton's big money man would be playing footy for the first time since May 15 if selected, but due to what's on the line it sounds like a risk the Blues are willing to take, according to AFL.com.au. 

With Matt Kennedy ruled out for the season and George Hewett in serious doubt, the inclusion of Williams could see him thrown into the midfield or on the wing to gain some extra quality and speed.

Williams could also run off a half-back flank due to Docherty's impressive outing in the guts on Saturday night against Melbourne.

However, Carlton are also confident that Adam Cerra will recover from an adductor strain in time for Sunday's crucial match against Collingwood.

MELBOURNE, AUSTRALIA - DECEMBER 06: Adam Cerra of the Blues in action during the Carlton Blues training session at Ikon Park on December 06, 2021 in Melbourne, Australia. (Photo by Michael Willson/AFL Photos via Getty Images)

These potential changes will force Michael Voss to once again reshuffle his team, after having to throw Docherty and Will Setterfield into the middle on Saturday night.

Looking further into Carlton's injury list, Ed Curnow and Josh Honey should be available for the first elimination final should they make it through. Jordan Boyd will be a race against the clock, along wtih Hewett.

Carlton take on Collingwood at 3:20pm on Sunday at the MCG in what promises to be one of the biggest home-and-away games of the last decade.