The 19-year-old will be subject to a report to the Procurator Fiscal, although the steward wasn’t injured.
’Well fans took to Twitter to complain about the heavy police presence at the game which saw several officers enter the Firhill stand after the suspect tried to hide among his fellow supporters.
Jason Henderson said: “Utterly surreal scenes at Firhill tonight.
“One wee guy acts like a tube, cue more than a dozen police officers orchestrating a pile-on.”
Derek Watson added: “Extremely aggressive stewarding resulted in police overkill.
“Around 15 cops trying to lift one young ’Well fan.”
Dave Taylor said: “Police and stewards were disgusting tonight at Firhill.
“Stood, stared and waited for the tiniest reason to wade in to the ‘Well fans.”
Jason Clark posted a picture of over a dozen officers standing in front of the ’Well fans before kick-off.
He said: “The amount of police watching a small section of Motherwell fans tonight. What a joke!!”
However, Police Scotland denied there was anything out of the ordinary about the number of officers at Firhill.
Chief Inspector David Pettigrew, local area commander, said: “The police presence at the match was standard for that category of the game.”