A shock result in the Scottish Premiership

St Mirren stunned Celtic by delivering their first league defeat in 364 days and losing their unbeaten start to the Scottish Premiership defence.

Mark O’Hara rose unmarked to head Paisley ahead shortly before half-time, the only shot on goal in a rather flat first 45 minutes.

After the break, Jonah Ayunga nodded the excellent hosts’ second goal, inflicting Celtic’s first league loss since a defeat at Livingston on September 19, last year, and leaving them two points ahead of Rangers at the top.

St Mirren’s fourth league win of the season lifts them over Aberdeen, Motherwell, and Livingston to fourth place at the end of the weekend.

shouts from the opposition end interrupted the pre-match minute of applause in remembrance of Queen Elizabeth.

And Celtic struggled in the first half, with David Turnbull, Aaron Mooy, and Daizen Maeda all missing with speculative efforts.

When Ryan Strain advanced on the right and delivered to the back post for the unmarked O’Hara to finish emphatically, St Mirren took advantage.

The visitors were suddenly confronted with a new challenge, having not trailed in a domestic game this season. They answered with a blocked Mooy shot and a successful overhead kick by Liel Abada.

Reo Hatate and Jota took over from Mooy and Maeda at the break, which brought an uplift in intensity from Celtic, but the defending champions were soon caught out at a thrown-in.

Declan Gallagher’s lofted delivery was headed up and around the box before Main nodded down for Ayunga to complete the play. Replays suggested offside, but that didn’t stop the home crowd from celebrating.

Giorgos Giakoumakis and Sead Haksabanovic replaced Abada and Turnbull on the Celtic team. St Mirren threatened again from wide right, with Strain crossing for O’Hara to go wide.

As Celtic attempted to re-enter the game, headed shots by Giakoumakis and Mortiz Jens were saved by home keeper Trevor Carson. And Carson cleared a Hatate cross in the six-yard box, prompting Richard Tait to make a crucial save.

And Jota’s late header wide clinched the outcome.