North Melbourne defender Ed Vickers-Willis has been delisted at Arden Street, however, the Roos intend to keep youngster Will Walker for 2021.

21-year-old Walker is expected to be delisted by the Roos, before being re-listed as a rookie for 2021.

Under new rules communicated on Tuesday night, clubs can move up to two players from the senior list to the rookie list before the rookie draft.

The Roos used four Category A rookie list spots in 2020, two of which have already been delisted (Tom Murphy and Lachie Hosie), meaning there is plenty of room for Walker.

Maximum list sizes sit at 44 for next season (inclusive of two Category B rookies) with a minimum of 36 required on the senior list and up to six Category A rookies allowed.

With Walker to be retained, it will leave the Roos with 35 contracted players for next season given arrival of Aidan Corr, Jaidyn Stephenson, Lachie Young and Atu Bosenavulagi in the Trade Period.

The other nine Roos delisted off the senior list were Mason Wood, Joel Crocker, Jamie Macmillan, Sam Durdin, Jasper Pittard, Paul Ahern, Ben Jacobs, Marley Williams and Majak Daw.

The Roos currently hold picks two, 11, 30, 39, 71 and 81 at next month's NAB AFL Draft. 

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