It was the game that reportedly saw Sir Alex Ferguson decide that he wanted to sign Wilfried Zaha - and one that ended in humiliation for Manchester United.
Crystal Palace defeated United at Old Trafford 2-1 in the Carling Cup quarter-final in November 2011.
But it was a half-time substitution by Dougie Freedman that really changed the tempo of this game. Darren Ambrose was at the time The Eagles talisman in their midfield.
He opened the scoring with a rasping drive which was later described as ‘the best goal scored by an away team at Old Trafford’ by Gary Neville.
A goal from Federico Macheda took the game to extra time - where Glenn Murray scored the winner to leave Sir Alex Ferguson red-faced in anger and embarrassment.
The former Ipswich Town, Newcastle United and Charlton man joined the Selhurst Park outfit on a Bosman transfer in 2009.
And for three seasons he wowed fans with his quality - that goal at Old Trafford being the icing of the cake.
But after 124 appearances and 37 goals for Palace he decided to move on in 2012 - joining Midlands outfit Birmingham City for £250k.
But things have not gone well since his switch.
Ambrose struggled for form and then picked up a knee injury which finished his season at St Andrews.
After 18 months at Birmingham Ambrose has managed just 10 appearances in all competitions for the club - and is now set to be on his way.
Ambrose will travel to Greece today to finalise the details of a six month loan spell at Apollon Smyrni. They are currently managed by former Northern Ireland and Fulham boss Lawrie Sanchez and he joins former QPR and Fulham star Lee Cook in making a move to the club promoted to the Greek Super League last season.
They are currently second from bottom - and Sanchez is obviously trying to use his English connections to get the best deals done for club and country.
Just a little over two years since Ambrose smashed in that goal he is involved in a Greek relegation dogfight.
Football truly is a funny old game.
image: © OliverN5