These are my favorite ones:
Aussie rules (when I was a big fan of it) - would have been Fraser Browne's tackle on Dean Wallis in the '99 Preliminary final where Carlton won by a point over a more dominant Essendon team.
Local football - 2 goals in 1 minute from South Melbourne (0-1 to 2-1) to beat Perth Glory about 4 years ago.
In international football, 2 favorite memories
1. Kevin Muscat's penalty for 1-0 against Uruguay in the 2001 World Cup Qualifier at the MCG and 90,000 people going nuts when he scored, with flares going off everywhere. Pity they beat us 3-0 in the return leg.
2. A recent one, Greece beating France 1-0.