Jens Lehmann has blamed the flight of the ball for his howler that cost Arsenal's Invincibles the chance to win the Champions League in 2004.
The German goalkeeper made a costly gaffe as the Gunners crashed out of Europe to their London rivals Chelsea in the quarter-finals.
With Arsene Wenger's team sweeping all before them on the domestic front - ultimately completing the 38-game Premier League season undefeated - they would never have a better chance to triumph in Europe as well.
But after a useful 1-1 draw in the first leg at Stamford Bridge, those dreams died in the return at Highbury despite Jose Antonio Reyes putting Arsenal in front.