Just days after Travis Varcoe announced his retirement, Lynden Dunn did likewise. Collingwood also delisted midfielder Tim Broomhead and defender Matthew Harry Reynolds. All three have had injury setbacks during their careers and the trio made comebacks of sorts in 2020 but were unable to cement their places in the senior team. Dunn, 34, was drafted by Melbourne in 2004 and played 165 games. He played just four games in 2016 as the Demons opted for younger defenders and he was traded to the Magpies at the end of the year.
St Kilda's Paddy McCartin has ruled himself out of the 2020 season due to ongoing concussion issues. McCartin, 23, was the number one selection in the 2014 draft but has played just 35 games since debuting in 2015. He has suffered eight concussions since 2014, the last coming in a 2019 preseason game. Former Saint Nick Dal Santo was a boundary commentator during that game. When the news broke that McCartin would not play in 2020. Dal Santo recalled the incident on SEN Radio, saying it appeared to be a "light brush" of the head, but with McCartin's history, it was enough to put him in a bad way. He has been unable to run or train since then.