He played at centre half-back for the majority of his career, but was also used sparingly as a forward.
Christian was a member of Collingwood's 1990 premiership side and represented the West Australian team on three occasions.
He hosted the breakfast program, Prime Time Sports Interactive, on Sport 927 with Angela Pippos and The Fifth Quarter, a post-match show following Saturday night AFL games, between 2004 and 2007 with Andrew Maher and from 2008 to 2011, with rotating expert commentators Michael Voss, Malcolm Blight or Luke Darcy.
He compered The Final Siren, a Sunday night football review show, in 2011.
[1] Under reformed procedures introduced by the AFL, Christian was appointed Match Review Officer, the AFL's sole adjudicator for the Match Review Panel, in 2017.