Forrest lashes in after Jota burst down flank
Celtic unchanged; three changes for holders St Johnstone
Celtic v St Johnstone (17:15)
Nick McPheat
BBC Sport Scotland at Hampden
The Celtic end unveil their tribute to Bertie Auld, a huge banner saying: "They'll encourage you and they'll never forget you."
Cards are also held aloft spelling out the icon's name. Chants of the Lisbon Lion's name also ring around the ground.
Fantastic atmosphere building.
Celtic v St Johnstone (17:15)
Nick McPheat
BBC Sport Scotland at Hampden
When St Johnstone fans watched their team complete the cup double at an empty Hampden back in May, you can bet many didn't believe they would be back to watch them in person at the national stadium just six months later.
Saints fans deserve this day out for what they missed last season. You can guarantee that will be the message from boss Callum Davidson to his players before they make their way out the tunnel.
Image source, SNSCup hero Shaun Rooney (left) & Cammy MacPherson (right) share a joke on the Hampden turf
Celtic v St Johnstone (17:15)
Celtic manager Ange Postecoglou tells BBC Sportsound: "I've got a feeling it will be a special atmosphere. Massive day for us.
"We've been very settled. Happy to go with the same line-up today.
"Most importantly, we've got to play our football. It's got us this far."
Celtic v St Johnstone (17:15)
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Celtic v St Johnstone (17:15)
Celtic manager Ange Postecoglou sticks with the same line-up as last weekend.
No surprises considering their recent form.
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Celtic v St Johnstone (17:15)
St Johnstone manager Callum Davidson tells BBC Scotland: "Great to be back, great the support's hear. Different vibe and atmosphere.
"It's going to be really tough today, Celtic are massive favourites. We're quietly confident.
"We've got to play really well. We've got to take our chances. You've got to have a go, it's a semi-final."
Celtic v St Johnstone (17:15)
Nick McPheat
BBC Sport Scotland at Hampden
Celtic goalkeeper Joe Hart is making his first trip back to Scotland's national stadium since Leigh Griffiths whipped two free-kicks over his England wall to send the Tartan Army wild in June 2017.
We all know what happened next...
Griffiths - now on loan at Dundee - will obviously not be in action today, but don't blame the former Manchester City stopper for getting a bit hazy if St Johnstone line a set-piece up on the edge of the box...
Image source, SNSHart stretches to try stop one of Griffiths' free-kicks
Celtic v St Johnstone (17:15)
Nick McPheat
BBC Sport Scotland at Hampden
Monday's Scotland euphoria has just about faded at Hampden.
Emotion will be high, however, with Celtic playing their first game since the passing of club legend Bertie Auld earlier this week.
And what a game it is set to be, with Ange Postecoglou aiming to get to his first Scottish domestic cup final.
A display is planned for 'Lisbon Lion' Auld, which can be seen scattered across the seats in the Celtic end in the west stand.
Image source, SNSThe scene is set at the national stadium
Celtic v St Johnstone (17:15)
Now let's turn our attention to the big game of the day - the Scottish League Cup semi-final between Celtic and holders St Johnstone.
A major test for St Johnstone after their double cup win of last season.
Scottish League 2
Scottish League 1
Scottish Championship
Arbroath mark manager Dick Campbell's birthday with a fine win away to leaders Kilmarnock.
Meanwhile, Dunfermline move off the bottom with a convincing win over Ayr in John Hughes' first official game in charge.
Hearts blow their chance to move above Celtic into second place in the Premiership.
Goals from Connor Shields and Ricki Lamie, shortly after Hearts were reduced to 10 men, ensured a happy day for Motherwell to build on their win last weekend over Aberdeen.
Nicky Devlin ruins St Mirren manager Jim Goodwin's birthday with a late equaliser for Livingston.
Jamie McGrath's sumptuous goal gave the hosts the lead, but right-back Devlin drilled in the late reply and the visitors survived a last-gasp penalty shout too.
Ian Harkes' strike gives United victory, but all the fallout will be about Aberdeen midfielder Funso Ojo's red card after being pushed by a fan.
United also had skipper Calum Butcher red carded in a fractious New Firm derby.
Dundee United 1-0 Aberdeen
Marley Watkins is played in by Ryan Hedges, but goalkeeper Benji Siegrist stands strong to save the Aberdeen striker's effort.
Eoghan Stokes
Craig Ross
One we missed early in the second half - and it is still the scoreline...
Ross Cunningham
Full-back Ross Cunningham scores his second of the game as Clyde turn the game around to leave East Fife stranded at the foot of League 1.
Nicky Devlin
Livingston are level and it's their captain Nicky Devlin on target.
The right-back hovered at the edge of the box after Jak Alnwick denied Harry Panayiotou and drilled a shot into the opposite corner.
