North Melbourne are looking to strengthen their ruck division, and have set their sights on former Western Bulldogs big man Tom Campbell.

According to AFL.com.au,ย the Roos will add Campbell to their list courtesy of the new supplemental selection period (SSP), which means Campbell will be free to join North from December 1.

Campbell however can't train with the club before the date, but will continue to prepare for the 2019 alone until Friday.

Campbell slots into an empty spot in North Melbourne's ruck stocks, after Braydon Preuss moved to Melbourne during the trade period.

The 27-year-old played 42 games for the Dogs over seven years.