Aberdeen manager Stephen Glass was encouraged by the Dons’ 1-1 draw with Celtic despite being denied a potential penalty.

Lewis Ferguson opened the scoring for Aberdeen before Celtic striker Leigh Griffiths leveled with the final touch of the game. Jonny Hayes looked to be brought down in the box by Callum McGregor as the Pittodrie club fell six points behind third place Hibs with three games to go in the Scottish Premiership.

Aberdeen v Celtic - Ladbrokes Scottish Premiership

Aberdeen drew with Celtic this week but could have had a penalty. (Photo by Scott Baxter/Getty Images)

Glass is pleased with the display ahead of Sunday’s Scottish Cup quarter-final with Dundee United: “I’m disappointed that we lost a late goal, but unbelievably proud of the players for the effort they put in. They were fantastic against a good Celtic team. They moved the ball very well, gave us a few problems, but I think we were ready for it.

“We were set up to break at speed and there were a couple of situations where I think people could see they should have been handled differently. When Jonny Hayes broke from their corner and got to the edge of their box, McGregor did not touch the ball, his body hit him, you could see his arm coming across the front of Jonny.

“He’s not going to dive in that position and we would expect things to be handled properly from there, but I’m not about to start criticising referees. Celtic make you work very hard, but the boys had it in the tank to keep going, which says a lot for them. We’ll go into Sunday’s game knowing that Dundee United are a tough opponent.”

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