Alfredo Morelos could be in trouble after appearing to make a throat-slitting gesture towards Celtic fans after being sent off in the Old Firm clash.
The Colombian received a second yellow card after diving in the Celtic penalty area in added time.
As the 23-year-old left the pitch, he appeared to make a gesture towards the Celtic fans who abused him as he left the pitch.
The hot tempered forward was quickly ushered down the tunnel by Rangers staff as his side battled on with 10 men.
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It's the latest incident in Morelos' storied 'Gers' career and he's now played 13 games against Celtic without scoring.
The red card is his second of the season after receiving one against Motherwell two weeks ago.
Ryan Kent also caused controversy with a gesture he made after scoring his goal.
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Kent opened the scoring in the first half and celebrated with a gun gesture towards the Celtic Park faithful as well as one to his head.
On the pitch, it was an inspired performance from Steven Gerrard's side.
Neil Lennon's side managed to find an equaliser through Odsonne Edouard in the 42nd minute, shortly after Kent's lovely opener.
But a second half finish from Nikola Katic gave them a deserved win.
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Moments after the referee blew for full-time, a delighted Gerrard screamed at the camera before joining his players on the pitch in an emotional scene.
His side are now two points behind Celtic in the Scottish Premiership and it sets up a riveting title chase.
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