Wigan won a dramatic match against their long-time rivals by just two points after St Helens scrum-half Jackson Hastings missed a kick to tie the game after the final hooter had sounded.
Earlier this week, the Warriors said they were “appalled” by the comments and “condemn them in the strongest possible terms”.
“No individual should be subjected to racist abuse, whether online, in person or in any other setting,” the club added.
“Racism must be called out, condemned and eradicated.”
Wigan head coach Matt Peet said: “We need to take care of this and make sure it just doesn’t get brushed under the carpet, which I’m sure it won’t.”
