Former European champions Celtic paid a paltry £650,000 to sign the magnificent number seven Henrik Larsson from Feyenoord on this day in 1997.

It turned out to be one of the best pieces of business in football history with the Sweden striker scoring 242 goals in 313 games winning four Scottish titles, two Scottish Cups, two Scottish League Cups and a UEFA Cup final runners-up medal in 2003 before joining Barcelona in 2004.

“A striker like Henrik would be worth around £30million or even £40million in 2017,” said his agent Rob Jansen.

“He was excited to join Celtic 20 years ago, but I don’t think anybody could have imagined just how successful the transfer would be.”

He won the Champions League with Frank Rijkaard’s side in 2006, coming off the bench to set up two goals as Barca beat Arsenal 2-1 in Paris.

But despite a spell with Manchester United, he will always be remembered for his contribution to Celtic where he was named in the Glasgow club’s greatest 11 players of all time.

Gone but not forgotten in Glasgow.