DOB: 16 April 1961
From: St. Peters East Bentleigh
Games: 22 (25 total)
Goals: 0 (2 total)
Forced to undergo a total reconstruction on his his right knee after injuring it in Round 2, 1983 O'Brien returned with the Reserves late in 1984 and remained on the senior list 1985 without playing another senior game.
After a handful of reserves games during 1986 he joined North Melbourne but didn't play a senior game. It took until 1988 for him to restart his VFL career with Essendon where he played three matches.
May have gone to Prahran after North in 1986.