In early December West Coast running defender Brad Sheppard and Suns defender Jacob Townsend announced their retirements just a few days apart. Sheppard, 30, was forced to retire due to ongoing concussion issues. He suffered several head knocks late in the season, the last coming in round 22. The Eagles believed he could still play but gave him time to decide. He sought medical advice over concerns about his future health and opted to retire.
Sheppard was drafted in 2009 and played 216 games. He was named All-Australian in 2015 and won the best clubman award in 2020. He was also a key member of the 2018 premiership side. Coach Adam Simpson said, "His career speaks for itself, over 200 games, it's just really sad that it finishes this way. He still had plenty of good footy left. He retires as a man with universal respect at every level of the football club ... ".