Forget Liverpool vs Everton or Barcelona vs Real Madrid, the ‘terrifying’ Old Firm derby between Celtic and Rangers turns players into ‘angry wolves’

World famous, ferocious and historic: there are few sporting occasions which match the Old Firm derby. The rivalry between Celtic and Rangers is arguably one of the biggest in world football. Granted, it was stopped in its tracks by Rangers’ demotion in 2012, and it may not have the talent to match the days of […]