St Johnstone manager Callum Davidson was left disappointed by how his side defended their box for Celtic's two goals on Sunday afternoon.
All was looking well when Shaun Rooney nodded the Perth men ahead on 50 minutes but a quick-fire double from Odsonne Edouard flipped the script.
The French forward twice netted from close range to earn the visitors maximum points.
Davidson said: “It’s a real difficult one to take. We’re walking off from the game thinking: ‘How did we lose the game?’
“First half we didn’t play well enough with the ball but worked extremely hard without it.
“Celtic broke on us from our own throw-ins a couple of times but apart from that we were solid.
“Second half, we asked the players to be a bit braver on the ball. I thought we were and got a deserved goal.”
Davidson added: “With Celtic you need to make sure you defend properly and have that mindset of not conceding too soon after you score.
“The longer it goes on you can frustrate them and hopefully get the victory.
“But I’m really disappointed with the way we defended our box for the two goals.
“You can say it’s good play from them but for me we’ve got to do better initially with the back pass to Zander (Clark) on his left foot.
“And then the challenges after that. We didn’t get near them and allowed them to score too easy. That’s the most disappointing thing.”
