He came out of retirement in 2019 to play for the West Coast Eagles in the Western Australian Football League (WAFL).
In a game against the Western Bulldogs in 2007 he helped inspire North Melbourne to a win in Glenn Archer's 300th match, kicking seven goals—six of them in the first quarter.
[1] Petrie was selected by coach Mick Malthouse for Australia in the International Rules series against Ireland as a utility player.
He was a key player during the second test at MCG, scoring two overs (three points each) in quick succession early in the last quarter.
From that point he turned on an impressive feat of goal kicking form, managing 46 in the final 15 matches despite being used as a decoy on multiple occasions.