In 2019 captained Western Australia at the 2019 AFL Under 18 Championships and won the Larke Medal as the best player in the tournament.
He played 18 games in 2023, including a grand final appearance in Brisbane's loss against Collingwood, in which he scored a goal.
He was subject to widespread fanfare following an incident where his shirt was ripped in a match against Collingwood at Marvel Stadium in Round 23 of the 2023 season.
Robertson continued to play with the ripped shirt until he took it off completely following a tackle from Beau McCreery.
[2] His ripped shirt was ultimately auctioned off for the Royal Children’s Hospital charity ahead of the 2023 finals.