Morgan has admitted that he was one of the 65,000 Arsenal fans duped into believing the veracity of the Bergkamp Twitter account, @DBergkamp1969, after Manchester United's former stopper van der Sar - who also played in the Dutch national team with the Arsenal star - told Morgan he thought it was the real deal.
Morgan says that it was only after the official Arsenal account retweeted one of 'Bergkamp's' posts that he also got in on the act and 'gleefully spent the morning honouring King Dennis by posting clips of his greatest goals (on Twitter)'.
Alas, it was not to be - as suddenly as the @DBergkamp1969 account appeared, it was suspended by Twitter; it was a fake after all.
Attempting to make one last save, Manchester United's former goalkeeper tweeted Morgan in apology:
'OK, sorry for the confusion and misunderstanding, but account of Dennis Bergkamp is fake'.
Piers Morgan was truly miffed, saying that he was 'going to find that faker if it's the last thing I ever do on God's Earth'. Many football fans - even Arsenal supporters - will doubtless hope that this will be the last thing Morgan actually does do.