Originally pushed out of the Swans side due to their already star-studded midfield, Mitchell's return to Sydney would be the perfect match for Sydney.
Mitchell played behind three All-Australian midfielders in 2016, forcing his departure to the Hawks.
With the Swans now in the middle of a rebuild, the Brownlow medalist's level of ball accumulation and skill would be a vital acquisition.
SYDNEY, AUSTRALIA - AUGUST 06: Tom Mitchell of the Swans in action during the round 20 AFL match between the Sydney Swans and the Port Adelaide Power at Sydney Cricket Ground on August 6, 2016 in Sydney, Australia. (Photo by Mark Nolan/Getty Images)