The Celtic F.C. plays all their games in Glasgow.
An estimated 80,000 fans travelled to Seville for the 2003 UEFA Cup Final.
The 2003 UEFA Cup Final was played on 21 May 2003 between Celtic of Scotland and Porto of Portugal.
The game had what UEFA described at the time as `` the largest travelling support to have assembled for a single game '' -- around 80,000 Celtic fans travelled to Seville for the final.
