LONDON (Reuters) - It would be a tough task convincing any Glaswegian that a Celtic versus Rangers Old Firm derby has any serious rival in world football - such is the intensity level that accompanies a clash between the Scottish giants.
So for sheer unconfined fervour, whatever the folk of Manchester may think, Parkhead may well be the place to be on Saturday as Celtic play arch-rivals Rangers in the league for the first time since 2012.
