Falkirk earned a stunning first victory over Celtic in 19 years as they took advantage of an abject display by the visitors to move up to fourth place in the Scottish Premiership.

Ethan Ross' early goal was added to by Scott Tanser's excellent run and finish before the break as John McGlynn's side ruthlessly exposed Celtic's defensive frailties.

Martin O'Neill's league leaders did come close on a number of occasions, with Camilo Duran denied by a post and Falkirk goalkeeper Scott Bain in stunning form throughout.

Defeat leaves Celtic with a record of three wins from their past 10 outings as they failed to extend their four-point lead at the top of the table.

Falkirk struck with their first attack and Celtic played a huge role in the concession. The returning Cameron Carter-Vickers was so lax, diverting the ball straight to Ross, who slammed in from close range.

A response came, but it never came to enough. Duran raced in behind and angled a shot off the far post, before Bain produced a wonderful save to deny Haissem Hassan's curling effort on the rebound.

Bain intervened so many times it got slightly ridiculous. His display was top drawer.

Falkirk's second goal arrived in stunning style. Owen Eames played a superb pass to Tanser, who burst through the defence to slot home beautifully. Celtic's defence was ripped wide open.

Celtic rang the changes and had several glaring chances but couldn't breach the home side as Falkirk earned a famous victory that will live long in the memory.

Falkirk came into this off the back of three wins on the trot, something they didn't achieve in the top flight last season. Now they have four and it's the best of the lot by a distance.

They hadn't beaten Celtic since the March 2007. Their confidence was high and they will be on the ultimate high now.

Their early goal, from their first attack, gave them huge encouragement. The second was outstanding. A brilliant pass, run and finish that tore Celtic apart.

They had fortune at times but Bain was superb with any number of excellent saves. Everything came together for them and this is such milestone moment for them.

There's a simplicity and confidence to their effectiveness, backed up by talented players who know exactly what they are doing.

All credit to McGlynn, his staff and the players. The Falkirk journey just gets better and better and their fans must be absolutely loving it.

In direct contrast, where to start with Celtic?

One clean sheet in 10 games now. Twice in a week they've conceded in the opening minutes and that clearly makes winning so much harder. Defensively, Celtic are so vulnerable it's untrue.

Going forward, Duran is the bright spark and was unlucky not to score but it all looks very disjointed. Celtic had glaring chances but it just wasn't good enough.

Three wins in last 10 now ahead of hosting Besiktas in the Europa League, where they've lost all three so far.

To suggest these are troubled times for Celtic and O'Neill would be quite the understatement.

There's no hiding place after a defeat like this. Scrutiny and questions will intensify with Celtic not providing sufficient answers.

Falkirk manager John McGlynn: "It was some shift the players put in. It's a huge testament to everyone, the work rate, the effort, the desire.

"To get the 2-0 advantage was huge and I think Scott Bain had two outstanding saves. He had to continuously produce in the second half so a huge thank you to him for the game he's had. We needed him to have the game of his life.

"A huge performance, all the characteristics you'd want from your team playing against Celtic."

Celtic manager Martin O'Neill: "Naturally disappointed. We conceded some poor goals from our viewpoint and naturally one so very, very early on in the game but we created enough chances to have won three games.

"We played some really decent stuff as well too on the surface and I thought we created a lot of chances, we just didn't take one of them. [Scott Bain] was absolutely magnificent. On the day, he was fantastic."