Chris McLaughlinScotland sports news correspondent

SNS

Celtic and Rangers will face off at Hampden on Sunday under different managers from when the teams last met at Ibrox in September

When Glasgow's two main football clubs meet at Hampden Park, winning means everything.

But rarely has there been such a curious build-up to a fixture that hardly needs a sideshow.

In Scotland, when chaos comes knocking at the doors of Celtic and Rangers, it's headline news.

And, lately, neither Old Firm club has been short of turmoil.

That might sound overstated to the casual observer or those outside Scotland's central belt, but in few UK cities is football so deeply woven into the social fabric as it is in Glasgow.

This time, though, there's an unusual symmetry: both clubs are struggling, on and off the pitch, at the same time.

Indeed both dugouts will feature different managers from when the rivals last met and played out a goalless draw at Ibrox on 31 August.

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