Following a mammoth day of football, I need my bed.

Cheers for joining me as Celtic capitalised on Barry Ferguson's first defeat as Rangers interim manager on his return to Ibrox.

Elsewhere, we caught a big win for Ross County while Dundee and St Johnstone picked a point each.

Catch you tomorrow when we'll do it all again.

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Fear not, your Scottish football fix will still be catered to tomorrow, and it's a belter.

Derby. Day.

The Edinburgh derby kicks off at Easter Road at 12:30 (GMT), before the New Firm derby finishes us off for the weekend at Pittodrie at 15:00.

• Hibernian v Hibs
• Aberdeen v Dundee United

Robinson confirmed youngster Evan Mooney is out for the season, while they will have to assess Mikael Mandron after he came off injured.

More from Stephen Robinson: "I don't think many teams press Celtic like that and create that many chances but we didn't take enough of them.

"That's probably been the story of our season. We can't afford a striker that gets 20 goals. There's very, very good points in that performance but we want to come out with three points."

"There's four games to play, 12 points to play for and that can make a huge difference in the standings. The top six is hard to get into.

"We've overachieved in the last two seasons, we know what we're missing but financially that's hard to do. To still be in the running it's very much a case of how many points we can pick up in the next four games."

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Stephen Robinson tells BBC Scotland his St Mirren side were denied "a very clear penalty" against Celtic.

"It's a penalty. It's very clear. The Celtic bench were very clear on it.

"It's not given, they go up the other end and score. Football is very cruel at times. The decision changes things but we still go and concede the goal. If you keep it at 3-2 and he doesn't give the penalty, the game is very much still alive."

Stephen Robinson quotes coming your way.

And he's fairly strong on that penalty decision...

More from Rodgers on some of the substitutions: "Callum had felt his calf. He should be fine but we don't want to take any risks with him.

"Auston got a bang in the head and had to get five stitches. He should recover but Scales came in and did really well."

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Celtic manager Brendan Rodgers tells BBC Scotland the win against St Mirren "was one of my favourite results of the season".

"It's a brilliant three points for us. I think our attacking play was really strong. We were so good on a difficult surface, the players were technically very strong.

"I think it's one of my favourite results of the season coming to St Mirren who have had some really good performances against other teams.

"Yang's girlfriend is here at the moment so he's in a great feeling. I said to her interpreter to try and make sure she stays!

"He's a young player, he's growing and developing which is why it's about more than just performances and results, it's about the development of young players."

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Brendan Rodgers has just been speaking to the BBC.

And he has a plea for Yang Hyun-Jun's girlfriend.

Yep, you read that right...

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Stephen McGinn
Former Dundee midfielder on BBC Sportsound

Although they finished fifth last year, if St Mirren can get into the top six I think it'll be Stephen Robinson's biggest achievement as St Mirren manager.

Kheredine Idessane
BBC Scotland at the SMISA

Home boss Stephen Robinson will no doubt have mixed emotions.

He will be feeling the bitter sting of defeat with disappointment but also knows his side contributed fully to a fabulous game of football.

They gave Celtic a real run for their money, drew several top-class saves from Denmark goalkeeper Schmeichel and will no doubt rue the concession of a needless penalty just before half-time that made their job even more tricky.

The energy, pressing and organisation of this St Mirren side caused Celtic a fair few problems and, if they can keep up the intensity in the run-up to the Premiership split, they will still fancy their chances of making the top six for a third consecutive season.

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Stephen McGinn
Former Dundee midfielder on BBC Sportsound

I think when they reflect on it they'll be really proud of the performance, but the message will be when you play Celtic, you can't afford to pass up chances.

The Celtic defender [Alistair Johnston] makes contact with the ball in the challenge and makes inevitable contact with the attacking player [Roland Iwodu].

Before Daizen Maeda scored, though, St Mirren had a fair shout for a penalty.

We've received some guidance from the Scottish FA on that...

Twenty-six goals for the season for Daizen Maeda.

Surely right up there in the player of the year conversation...

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Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

It's the best I've seen Hatate for quite some time, on a tricky pitch.

Neil Lennon
Former Celtic midfielder manager on Sky Sports

What an impact Yang had, magnificent.

He's really coming on and he looks like he's enjoying himself.

A moment for this man...

Image source, SNS

Image source, SNS

Image source, SNS

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

St Mirren were always in it up until the final period in that game. Celtic in the last 25 minutes, and the changes Rodgers made, what an impact.

Yang was lightning when he came on. Maeda getting his goall too. I think in the last 25 minutes Celtic deserved it but St Mirren were always in it.

They had huge chances and that's the big difference between the two teams.