Amid a contest in which the league leaders complained about their hosts' physicality, the Easter Road centre-back sustained what seems to be a serious facial injury. Coming against a backdrop of complaints from Celtic - with Neil Lennon accusing Hibs of a "shocking" level of physicality and of "late, high, reckless" challenges, as well as calling a foul by Rowan Vine on Darnell Fisher as "rugby-esque" - it adds a further layer to a row that has already escalated on Twitter, with Vine and Lennon exchanging testy messages.
Nelson, too, got involved, posting a picture of his black eye accompanied by the message: "Certain people crying and moaning about tackles in the paper today. [You] don't hear me complaining. One player was badly injured from a mistimed tackle/collision and it wasn't a Celtic player."
Having been sent for hospital tests following an aerial challenge with Amido Balde in the closing seconds of the game, it appears Nelson has been given bad news. Responding to a Twitter question over the extent of his injury, Nelson replied: "Possibly a little bit more than a black eye," and then in a separate response: "Not great, pal. All will be revealed Thursday, I think."
Hibs were yesterday unwilling to disclose the extent of Nelson's injury, although pictures of the defender have shown substantial swelling and bruising around his left eye. It is understood that Pat Fenlon is keen to keep the seriousness of the defender's injury under wraps until his weekly press conference at Easter Road on Thursday. Speaking after the game, on Saturday however, Fenlon told Hibernian TV: "Michael Nelson picked up a knock and looks like he might be in a little bit of trouble."
Hibs at least have a ready-made replacement in the shape of club captain James McPake, who has been restricted to just two substitute appearances since injuring his back in the 7-0 mauling from Malmo in the Europa League in July.