Celtic midfielder Nir Bitton lofts a ball over the top and Kris Commons connects at the back post area but can only get a slight touch on the ball and it dribbles wide.

Half-hearted cries for a Celtic penalty as Ryan McGowan lunges into a challenge on Anthony Stokes as the forward lines up a shot 15 yards out.

A nice passing interchange from United ends with Ryan Dow slipping a pass to Ryan McGowan inside the Celtic penalty area but Virgil van Dijk is too strong for the Aussie, simply easing him off the ball with his shoulder.

BBC Sportsound pundit Billy Dodds

"They are certainly rattled, Celtic. Dundee United have had the better of the last 10 minutes, they're not letting Celtic build the game."

Kris Commons twists away from his marker to fashion room for a shot from 20 yards but once again the ball flies high over the crossbar.

A United long throw-in is flicked on in the Celtic penalty box and it reaches John Rankin but the midfielder is stretching to get the ball under control and keeper Craig Gordon throws himself at the feet of his opponent to smother the danger.

Pitch-watch. The Hampden surface appears to be holding up well. We've had none of the slips or turf cutting up that blighted the semi-finals.

United win two corners in quick succession but Celtic are untroubled and a break from the team in green and white ends with Kris Commons firing a shot high over the crossbar from 22 yards.

Dundee United have a free-kick on the edge of the penalty box as Ryan Dow is impeded by Efe Ambrose. Paul Dixon hammers it right into the defensive wall.

Big chance! Callum Morris is woefully short with a back-pass and Leigh Griffiths is on to it in a flash and skips round keeper Radoslaw Cierzniek only to roll his shot from a tight angle into the side-netting.

BBC Scotland's Jim Spence on Twitter: "Expected from @dundeeunitedfc fans but class from @celticfc supporters for the applause for Frank Kopel there."

A round of applause breaks out at the national stadium in memory of former Dundee United hardman Frank Kopel, who passed away last year. Nice touch.

From Anthony Stokes's corner, Virgil van Dijk gets a header on target but it loops up off the shoulder of Callum Morris and Sean Dillon completes the clearance on the goal-line.

Celtic's Stefan Johansen whips a great cross into the Dundee United penalty area and Jaroslaw Fojut does well to divert the ball over his own crossbar.

Celtic get the 69th Scottish League Cup final started at a noisy Hampden. Hang on to your hats...

The teams are out on the park; a quick round of handshakes, a few hearty backslaps, and we'll be off any minute now.

If you're not watching the BBC One Scotland pictures, you've just missed the obligatory shot of Rod Stewart in the crowd. Where's Lorraine Kelly hiding? What about BBC balance?

Scott Brown certainly got a huge roar of approval from the Celtic fans inside Hampden Park and there are some nice TV pictures of Gary Mackay-Steven and Stuart Armstrong exchanging hugs and handshakes with their old United team-mates.

Having lost to St Johnstone in last season's Scottish Cup final, Dundee United are competing in back-to-back finals for the first time since Jim McLean was terrorising the Tannadice dressing room and outsmarting Barcelona.

Midfielder John Rankin revealed that he and his team-mates did not enjoy the whole occasion last time and are determined to make the most of this second chance.

We've got this game covered from all angles on the BBC Sport website. Use the coverage tab above and you can choose from TV pictures and radio commentary. There's even a radio commentary in Gaelic.