Dundee manager Paul Hartley says his side out-thought Celtic this evening after they grabbed a 0-0 draw at Celtic Park in a Scottish Premiership fixture.
Celtic instantly found a disciplined and hard working Dundee side from the first whistle, with the visitors keeping the Bhoys comfortably at bay in the opening 45 minutes, something which led to boos at the break from the home fans.
Dundee began to grow in confidence after the break and even tested Craig Gordon, who turned away a shot from Craig Wighton.
Paul McGowan then had an effort which went over the bar, while Charlie Mulgrew almost scored for Celtic, but was denied by a superb save from Scott Bain.
Dundee could have won it at the death, but Gary Harkins sliced his shot and it finished 0-0, with the Celtic fans booing their team off, while Aberdeen's 1-0 win at Dundee United means the gap at the top is now just four points.
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For Harley, Dundee's draw was no more than they deserved and he revelled in having out-thought Celtic boss Ronny Deila.
"I felt we were really comfortable", he was quoted as saying by the BBC.
"They're a magnificent bunch of players to work with. It was a magnificent team performance.
"We out-thought Celtic tonight."