That's all from us after a headline-grabbing end to a long opening day of the Scottish Premiership season.

Remember those highlights on the BBC Scotland channel right now. If you miss it, it's repeated on BBC One Scotland at 22:20.

Meanwhile, join us tomorrow for the final top-flight match of the weekend as Hibs return from progress in Europa Conference League qualifying to host St Mirren.

Join us then.

Rangers manager Michael Beale tells BBC Sportsound: "Kilmarnock defended extremely well. They had a game plan. They were dangerous on the counter all day. They were comfortable in the game.

"It's a very poor opening day for us. We need to move forward very quickly. There's 37 games to go, let's not get carried away.

"The excitement over the summer is going to be tempered. We have to show the fans and excite them and they have to get behind us, it works both ways.

"I expect us with the quality we have to execute in the moments we had. If we don't, I expect a hard-fought away draw rather than coughing up a really poor goal."

Kilmarnock manager Derek McInnes tells Sky Sports: “You have got to do so much right to beat a team with Rangers’ quality.

“We spoke at half time about strike the first blow against Rangers to have something to hold on to but to plant that seed of doubt. We knew, if we did that, we’d have a real good chance.

“We had to show a different version of ourselves against the Old Firm this season. Rangers will get better, but I think we’ll get better as well.

"Our level of performance had to be really good today, but we delivered that. It’s a really strong start.”

It must be remembered that Ange Postecoglou suffered a stuttering start to his first season as Celtic manager two seasons ago before turning it round and winning his first of two consecutive titles.

However, it was the manner of defeat for Michael Beale's side that will worry Rangers fans as much as anything.

Until today, Rangers were unbeaten in their their opening game of each of their last 20 top-flight seasons since losing 2-1 to Hearts in 1998-99.

The worst they had previously suffered was five draws.

Stay with us for reaction from Rugby Park...

You can relive that opening day of the Premiership season now on BBC Scotland channel.

Sportscene is showing highlights of all five matches.

Lee McCulloch
Former Rangers midfielder & Kilmarnock manager on BBC Sportsound

Rangers' new signings will realise it is not going to be easy. They have got to take the flak that is coming their way on their shoulders and try to prove everyone wrong. Walter Smith used to say that there's a graveyard of international players at Ibrox who could not handle playing for Rangers and there were hints of that today.

I felt that Michael Beale and Rangers had to get to the winter break still in touch with Celtic. There's going to be bumps on the road, simply because there is so much change. He's failed at the first hurdle and he's three points behind. The heat is on. It's the worst possible start. They were awful.

Image source, SNS

What can we deduce from Rangers' first competitive fixture?

Defeat by Kilmarnock has followed others in friendlies against Newcastle United and Olympiacos, but they also drew with Hoffenheim and beat Hamburg.

What you can say is that they have a lot of improving to do - and they need to do it fast if they are to keep pace with a Celtic side who look to be carrying on from where they left off last season after their 4-1 defeat of Ross County earlier.

That's Kilmarnock unbeaten in all five games this season - if you discount the bonus-point shootout loss to Raith Rovers in the Viaplay Cup group stage.

They have also ended Rangers' run of six wins in a row against the Ayrshire side.

Lee McCulloch
Former Rangers midfielder & Kilmarnock manager on BBC Sportsound

Derek McInnes - he just keeps on doing it and Kilmarnock deserved their win. But it has just been a poor, poor performance from Rangers. I don't think anybody in a Rangers jersey got pass marks.

Rory Loy
Former Rangers forward on BBC Sportsound

I was every bit as impressed with Kilmarnock in the second half as I was in the first. Against the Old Firm, you can win a game, you don't always deserve to win it. However, Kilmarnock absolutely deserved to win that match.

A famous win for Kilmarnock. A deeply damaging one for Rangers even if it is only the opening day of the Premiership season.

Michael Beale's rebuilt visitors crumbled under the pressure at Rugby Park and already reigning champions have established a three-point gap with their likeliest title rivals.

Kilmarnock deserved their victory, thanks to Brad Lyons' goal. They outfought - and out thought - their more illustrious visitors.

Image source, SNS

Kilmarnock look to kill the game on the break.

Kyle Vassell has two to aim for inside the Rangers penalty box on the break, but the striker can't make it count.

Rangers are camped inside the Kilmarnock half, but there is no way through and they are running out of ideas. Not that they have had many for most of the match, in truth.

We're entering six minutes of stoppage time.

Can Rangers rescue themselves from a rare, damaging, opening-day defeat?

Kemar Roofe has the chance to rescue Rangers from a corner.

However, the sub striker can only head into the side netting - admittedly it was a very tight angle.

Time running out for Rangers.

Nicolas Raskin unleashes a hopeful 25-yard drive, but the Rangers midfielder's effort flies a couple of feet wide.

Rangers send on Kemar Roofe, a striker not even considered for their European squad, for summer signing Sam Lammers.

Image source, SNS