Callum Moore in action for the Blues in a practice match against Collingwood. Picture: AFL Photos

DISCARDED former Richmond forward Callum Moore has won the final spot on Carlton's list ahead of the 2020 season.

AFL.com.au understands Moore has signed with the Blues on the eve of their round one clash against his former side, having joined the club last month as one of four train-on players.

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He will be recruited as a pre-season Supplemental Selection Period (SSP) signing ahead of Northern Knights defender Ryan Sturgess, ex-Western Bulldogs utility Lukas Webb and former Geelong midfielder Jordan Cunico.

The position on the club's list was made available after first-round draft pick Brodie Kemp was moved to the long-term injury list due to his recovery from an ACL injury sustained midway through last year. 

Moore's versatility and ability to play as a 193cm marking option in the forward line won him the position on Carlton's list, with concerns lingering over the fitness of key attacking duo Charlie Curnow (knee) and Harry McKay (groin) going into the season.

It's understood the Blues rated Sturgess highly during his time at Ikon Park and are hopeful he will join their VFL affiliate the Northern Blues this year, where he would be under the watchful eye of the club's recruiters before the NAB AFL Mid-Season Rookie Draft.

Fellow triallists Webb and Cunico have already announced they will join the Northern Blues ahead of this season's VFL campaign.

Moore played eight games across four years with Richmond, having been recruited to the club as a rookie, kicking five goals. He also kicked 56 goals from 40 VFL games during that time.