Our legends team will be back in action in September, when they host Real Madrid Legends at Emirates Stadium.
So to mark the occasion, we reunited four of our Invincibles to remember that historic 2003/04 season, and reveal when they knew they would become immortal.
Click 'Play' on the video above to watch Lauren, Robert Pires, Pascal Cygan and Gilberto reminisce - and then don't forget to get your tickets to September's game by clicking here
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