St Mirren boss Stephen Robinson tell BBC Sportsound: "Full credit to the players. We work all week on things, it isn't too far from what we do in general in games, just maybe a bit further back in the pitch and we spring and we break with good pace.

"The boys are the ones who do it on the pitch, they're tired and still trying to take the tactical information on board in a real, real good performance from them.

"I thought we were excellent to a man, but Curtis Main was outstanding. He held the ball up for us, never tired in the game, even at the end. It's not often I'll give individuals mentions, but he deserves one today. He gives so much more than just goals.

"Celtic are a top, top side. When playing them, you need people to be brave and get a hold of the ball. That's the most pleasing aspect of the game today for me, we played and passed and hit them on the break.

"At any stage of the game, Celtic can turn it on the head with their quality with a moment of brilliance but our shape and discipline was maintained for 94 minutes."

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It's the first time Celtic have conceded twice in a league match since a 3-2 victory over Dundee in February.

Celtic manager Ange Postecoglou tells BBC Sportsound, "First thing, credit to St Mirren, they worked really hard and were committed to their game plan and made it difficult for us.

"The performance today wasn't up to our levels and nowhere near where it needs to be."

On the six changes to his starting XI being a factor: "Potentially, it could be a number of reasons. From our perspective, we didn't perform in any of the areas we like to perform in and have been performing in. There isn't anything hugely positive we can take from today, including team selection, probably wasn't right.

"There are always reminders we still have work to do. Every team is a potential hurdle."

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Motherwell: Kelly, McGinn, Lamie, Johansen, Penney, Tierney, Maguire, Goss, Spittal, Van Veen, Efford.

Substitutes: Oxborough, O'Donnell, Mugabi, McKinstry, Cornelius, Aarons, Moult, Mahon, Miller.

Hearts: Gordon, Smith, Neilson, Kingsley, Cochrane, Halliday, Devlin, McKay, Kiomourtzoglou, Forrest, Shankland.

Substitutes: Stewart, Haring, Grant, Mackay-Steven, Atkinson, Sibbick, Humphrys, Ginnelly, Snodgrass.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

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"It was comfortable actually," beams Mark O'Hara as he hails the St Mirren game plan in his interview with Sky Sports before picking up his man-of-the-match award.

"It's massive. We've worked all week on a game plan. To see it come off is brilliant. Everybody was up for it, everybody was on it. I should've scored another."

And second goal scorer Jonah Ayunga added: "We knew they were going to have a lot of the ball so that's what we've been working on all week and making sure when we do get the ball that we make the most of it, which we did with the two goals."

Steven Thompson
Former St Mirren striker on BBC Sportsound

That was St Mirren manager Stephen Robinson's first win over Celtic in 15 attempts.

Image source, SNS

Steven Thompson
Former St Mirren striker on BBC Sportsound

Image source, SNS

It's the first time St Mirren have beaten Celtic in Paisley since 2010 as the Buddies join Real Madrid as the only sides to get the better of Ange Postecoglou's side this season.

Goals from Mark O'Hara and Jonah Ayunga earn St Mirren a memorable win.

Celtic's unbeaten run in the league ends one day short of a year as their lead at the top of the table is cut to two points.

St Mirren are up to third for now and they will stay there if we get a draw at Fir Park later.

Sead Haksabanovic is cautioned for an angry shove. The home fans are loving this.

The ball is still stuck in that corner... Perfect for St Mirren as chants of "easy" come from the home supporters.

Curtis Main keeps a cool head to win St Mirren a corner. They'll try and keep the ball in the corner for a while.

We're moving into four minutes of stoppage time.

Sead Haksabanovic does will to dig out a cross under pressure and Jota flashes a strong header wide.

Marcus Fraser is the latest player to pick up a booking as St Mirren fight and scrap to keep Celtic at bay.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

More time ticks away as a frustrated Anthony Ralston foolishly bundles over Charles Dunne in the home penalty box.

Trevor Carson is in no hurry to take the free-kick.

Every block and clearance is being met with huge roars of encouragement from the home fans.