Injuries have forced Ben Sinclair out of the game, with the Collingwood defender retiring at the age of 26.
Sinclair played just 63 games in eight years, having started a battle with hamstring problems in 2014 after early issues with shin splints.
In 2016, he suffered four concussions in 14 rounds; the last of which ended his season five weeks early.
In 2017, he badly tore a hamstring tendon in a pre-season game against Essendon, and despite seeing a specialist again mid-year after struggling with subsequent nerve entrapment, failed to get back on the field.