The players head out to a thunderous reception, Hampden separated evenly between blue and green. To earn the chance to face St Mirren in this stadium next month … the action begins.
More matches: John Brewin provides live updates for West Ham vs Newcastle in England's top flight; Yara El-Shaboury brings the newest developments from the early kick-offs in the Women's Super League.
Regarding our coverage, there's just over five minutes before the game begins at the national stadium!
Nick Walsh is the man in the middle today. He also refereed last year's Scottish Cup final featuring these two rivals and a continental game in the last term where he showed four dismissals and twelve cautions. Steer clear of confrontation.
Danny Röhl: Although this marks his initial Old Firm, the fresh-faced gaffer has emphasized recently that he's familiar with taking part in other important local clashes as a coach, with Bayern Munich plus his stint at Wednesday.
I recall when Hansi Flick took over, our following match was at home against Dortmund. We triumphed 4-0. It is always a booster if you win such a game. Furthermore, in the Championship in the Sheffield derby, I participated there too. I understand the significance among the followers. This is more than just a game.
The young coach has also been lauding the enduring career of 73-year-old Martin O'Neill.
I hold great admiration for such a coaching career. I believe it's always impressive for a coach when you sustain your career over decades in this field and accomplish your objectives.
I'm only starting out my coaching path. I have a lot of work to do to come to this point however the positive aspect we begin level, distinct coaching generations and we'll observe what we can contribute through our squads in this encounter.
I am very excited. I've gained some experience yet I foresee a big, big one on Sunday. To be involved in this fixture, it's all or nothing. Success secures a final place, you lose, you're out. I feel all elements converge for a great, great game.
The Celtic manager: The Celtic interim manager has this week been reminiscing about his first meeting against Rangers 25 years ago, the famous 6-2 demolition.
Well, replicating that could be very challenging, netting six times against that side. I'd settle for a really lousy 1-0 victory if we could get it. Various individuals tell me and mention to me: 'That was a fantastic encounter', despite not being born at the time. They relate to me their grandfathers and fathers discussed it frequently. It became a really pivotal match for us, not just that season, but probably for continuing on.
The tension for nearly 72 hours before, and then if you got the result, a great relief. And I think that's what the legendary Walter Smith often mentioned too, that it was relief more than anything else. Yet these represented superb matches truly. It continues to be a superb rivalry.
This represents an important match for us. Honestly, don't conceal that fact. It's a semi-final, it's a crucial contest for us. Any Celtic-Rangers game constitutes a significant occasion, however specifically because of the circumstances of recent times, if not recent weeks, definitely.
Two fresh managers on the sidelines this afternoon though there's a significant difference in rivalry knowledge separating them. Danny Röhl encounters his inaugural leading Rangers while Martin O'Neill is about to take charge his 28th such match.
The outcome today may substantially affect on how long O'Neill's second spell as (interim, for now) Celtic boss persists, as Ewan Murray has considered.
The club might spend £5m in compensation to coax Kieran McKenna from Ipswich Town. They may attempt a larger risk on Robbie Keane. The reigning champions may opt to give Club Brugge's Nicky Hayen a first taste of British football. These are all gambles to varying degrees. Beyond O'Neill? This is debatable.
Celtic (4-3-3): Schmeichel; Ralston, Trusty, Scales, Sarrachi; McGregor, Engels, Nygren; Maeda, Kenny, Tounekti.
Substitutes: Sinisalo, Balikwisha, Yang, Osmand, McCowan, Hatate, Murray, Forrest, Tierney.
Marcelo Sarrachi begins ahead of Kieran Tierney in the left-back position. James Forrest is also omitted from the first team that beat Falkirk in their recent match.
Rangers FC (3-4-3): Butland; Djiga, Souttar, Cornelius; Tavernier, Diomande, Raskin, Meghoma; Aasgaard, Chermiti, Danilo.
Substitutes: Kelly, Aarons, Fernández, Rothwell, Antman, Moore, Gassama, Curtis, Miovski.
James Tavernier gets the nod instead of Max Aarons on the right, featuring Mohamed Diomande replacing the banned Connor Barron in the middle and Thelo Aasgaard chosen instead of Mikey Moore in offensive positions.
Hello and welcome to this Old Firm clash. It's got to be better {than last time|compared to the previous meeting|versus
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