Craig Thompson booked Scott Brown, who has a reputation for his tough tackling, after he went down in the box from a David Ravan tackle.
The Scotland international has no history of diving but given that Celtic weren’t performing to their usual standards in the game he may have decided taking a tumble was the best way to give his side an advantage.
Speaking to the media afterwards Deila was resolute in his opinion that Brown didn’t dive, and dismissed the whole incident as a non-issue.
He said: “Scott Brown is the last man in the world anyone can accuse of diving. He is a tough guy. It’s hard for me to say what happened because I haven’t seen it again – but it’s not a big issue for me.”
Whilst he is the last man many would think to accuse, on this occasion it did look as though he deliberately went down, receiving another yellow card the game after he served a ban for an accumulation of bookings.
Celtic’s draw won’t do any immediate damage to their title hopes, with Aberdeen still trailing by five points.
However, if the Bhoys continue to produce lackluster performances then that gap could quickly shrink and Deila’s men could find themselves under pressure.