Rowan Vine's first goal for St Johnstone gave the home side a shock 2-1 Clydesdale Bank Premier League win over Celtic at McDiarmid Park.
Kris Commons drove the champions into the lead in the third minute but Saints striker Gregory Tade levelled in the 18th minute before the visitors were denied what looked a clear penalty when Steven Anderson challenged Commons inside the box.
But Celtic were well off the pace all afternoon and in the 80th minute they paid dearly when former QPR striker Vine curled the ball in from the edge of the penalty area to hand the Perth club their first win of the league campaign.
It was not the result or performance Neil Lennon was looking for ahead of their Champions League opener against Benfica at Parkhead on Wednesday.
However, the result will delight St Johnstone manager Steve Lomas who had seven players down with a virus on Thursday, which led him to cancel training.
