A bogus steward attacked a safety manager at Ibrox Stadium after being caught.
Stephen Lyndsay, 23, pulled Graeme Smillie, 62, to the ground shortly before a Rangers vs Motherwell clash on September 19, 2021.
Mr Smillie had confronted Lyndsay after he clocked the attacker wearing a G4S bib in the stadium concourse.
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Lyndsay attempted to flee the scene after Mr Smillie told him that he was waiting for contact from G4S to see if he worked for them.
Lyndsay, of the city's Carntyne, dragged the pair through an emergency exit with both receiving minor injuries.
Unemployed Lindsay was convicted at Glasgow Sheriff Court to the single charge of assault.
The court heard from Mr Smillie who stated in his evidence that he saw Lyndsay and another man wearing a hi-vis vest with a G4S logo on before the match which would end 1-1.
Mr Smillie said he had no record of G4S staff working.
He said: "They told me that they were working there and I knew that was not correct.
"One of the men ran away and the other walked towards the exit doors in the stadium."
Mr Smillie stated he radioed G4S control room to ask about the men meantime.
He added that he was facing Lyndsay as he made his way to the door.
Prosecutor Jeremy O'Neill asked what happened.
The witness replied: "He leaned forward and grabbed the jacket I was wearing - he leaned backwards and pulled me forward.
"The push bar on the door was pressed and we both fell to the ground outside the stadium."
Mr Smillie said he landed on his hand and his glasses fell off as Lyndsay fled the scene.
He was later picked up by a police officer on a motorbike who arrested him.
Lyndsay stated in his evidence that he was the victim of an assault from Mr Smillie.
He said: "I kept facing him walking backwards and he pulled me down, he was keeping hold of me."
Lyndsay stated that he landed on his forehead which bled as a result.
He claimed that he earlier threw his match ticket in the bin and was wearing the bib to protect his jumper.
Lyndsay added that he did not have time to change after helping a friend lift tyres earlier that day.
Sheriff Stuart Reid rejected Lyndsay's evidence stating there was a "lack of candour which undermined his honesty and his actions."
The sheriff admonished Lyndsay and told him: "A smack on the head is a sufficient punishment."
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