Ian Wright said he was "really disappointed" by the "disgraceful behaviour" of some Leicester fans during Saturday's Community Shield win over Manchester City.
Wright said verbal abuse was aimed at him and fellow ITV pundit Roy Keane.
The former Arsenal striker appeared visibly angered by something in the crowd and called some Leicester fans "complete mugs" while still on air.
He later clarified he was referring to a small section of supporters.
"Let me just clear that up because obviously Leicester fans know how much respect I've got for them, their owners and constantly bigging up Leicester and what they do," Wright said on Twitter.