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Rangers fans on Twitter have been busy laying into Alfredo Morelos, after the striker's straight red card midway through the first half ultimately cost them in the Old Firm Derby.

The Colombian forward was given his marching orders for an elbow on Celtic skipper Scott Brown, who was seen smiling as Morelos trudged off the field.

Check out Keith from C'mon the Hoops' fascinating video on the origins of the Old Firm derby below...

Morelos is making a habit of picking up red cards, and is becoming a recurring liability for Steven Gerrard despite the huge amount of goals that he brings to the side - he has now picked up nine yellow cards and three red cards in the league this season.

The 22-year-old has, however, found the back of the net 27 times in the current campaign, although his awful discipline is making it hard to justify his inclusion in the team despite his excellent scoring rate.

Let's see what the understandably frustrated Rangers supporters on Twitter have been saying about the hotheaded goalscorer...