The Old Firm is the perfect example of the huge sectarian divide in the city.
Celtic-Rangers: Old Firm the Most Heated Rivalry in World Football
https://bleacherreport.com/articles/705188-celtic-rangers-old-firm-the-most-heated-rivalry-in-world-football
Said to be worth £120 million to Scotland's economy, the Old Firm derby between Celtic and Rangers is one of the most highly-anticipated, hotly-contested and important rivalries on the football calendar. Breaching the Glasgow divide to cross paths at least four times a season, Celtic and Rangers have a long history of being locked together in mortal combat.
And unlike most rivalries in world football, there's more riding on these games than just three points, a bit of pride or a place in the next round of the cup. The Old Firm may not have the world famous superstars of El Clásico, or be as colourful as El Superclásico, and it may not even be as downright vicious as the Derby delle Capitale or the Clássico dos Milhões, but it certainly is the most fervent.
When these two meet in the Old Firm, it's not just about football. It's about politics, religion, and differing social attitudes. And at the moment, it's about religion especially, with sectarian chanting rife in the Ibrox or Parkhead stands, as the Protestants of Rangers and the Catholics of Celtic clash yet again.
One man at the centre of such sectarianism is Celtic boss Neil Lennon, a former Northern Ireland international and a well-renowned Catholic, who if reports in the newspapers and the words of die-hard Rangers fans are to be believed, is almost a "dead man walking." Rangers fans, and their unionist supporters from Northern Ireland, target Lennon as he's a well-known Catholic and nationalist, the antithesis of the typical Rangers fan and Northern Irish citizen.
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Football's Most Dangerous Rivalry
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