Celtic's late penalty appeal against Rangers on Sunday has gone under the Sky Sports Ref Watch microscope.
The Parkhead side eventually lost 3-2 to their fierce city rivals in their own backyard, with Hamza Igamane's strike in the 87th minute proving decisive.
After the Moroccan put Rangers ahead, however, there was still time for Brendan Rodgers' men to level things up.
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Indeed, in the dying embers, Reo Hatate swung a deep cross into Jack Butland's box. Adam Idah went down under the challenge of Ridvan Yilmaz before Alistair Johnston ballooned his first-time effort over the bar.
On Ref Watch today, ex-Premier League whistler Dermot Gallagher put the incident under the microscope: "Could and should Celtic have had a penalty in the dying seconds of stoppage-time," he was asked (live on Sky Sports).
"No," he said. "The ball comes in. A bit of physical contact. It goes to Alistair Johnston, who may have well put it into the back of the net on another day, but not a penalty."
Celtic have now lost back-to-back matches against Rangers and conceded nine goals in their last three games against the Ibrox side.
Rodgers' side, however, remain 13 points clear at the top of the Scottish Premiership and are four wins away from securing their fourth consecutive league title.
