Olympiakos goalkeeper Roy Carroll is ready to haunt Arsenal again in this week's Champions League clash.
Keeper Carroll kept a clean sheet for Manchester United to help them break the Arsenal Invincibles' 49-game unbeaten run in 2004.
"That game in 2004 was a great occasion and I was delighted to keep a clean sheet," said Carroll. "That was a good Arsenal side, probably one of the best sides in Premier League history.
"So to beat them and end their unbeaten run was fantastic. We played a lot of good games against Arsenal around that era, but that was one of the best.
"Back then the big rivalry at the top was United and Arsenal. I honestly still don't know exactly what happened in the tunnel after the game.
"Me and Tony Coton, the goalkeeping coach, came in late and just caught the back end of everything.
"There was shouting and a bit of chaos, but once we got into the dressing room we were just happy we had won the game - we weren't too bothered about what had happened. I would have loved to have seen it all go off! Sir Alex must know exactly what went on and where the pizza hit him. Maybe one day he will tell the rest of us."