Gardiner was also runners up in Sandringham's best & fairest and Under-18 Victoria Metro representative in 2001.
Gardiner was traded to St Kilda Football Club during the 2007 trade week, along with fellow Cats player Steven King for St Kilda's draft selection 90.
He had an indifferent year, playing 12 games, including the qualifying final against old club Geelong, and kicking 9 goals but in the end it was not enough to retain his spot on the Saints' list and he was delisted at the end of the season.
In 2019 Gardiner joined the Sydney Swans as Executive General Manager of Football.
Player Profile: Official AFL Website of the St Kilda Football Club