Celtic fans are known the world over for the size of their fanbase. Whenever the Hoops travel when competing in Europe or even for pre-season friendlies, a sea of green and white will be witnessed no matter where the team goes. We all remember the scenes of the 2003 UEFA Cup Final when Celtic took over 100,000 fans to Seville to take on Porto. The Celtic fans will also remember descending on the cities of Liverpool, Blackburn, Stuttgart and Vigo on the way to that historic final. Last season’s pre-season tour of Japan and South Korea saw the Celtic fans turn out in their droves and before that…