Blackpool manager Ian Holloway revealed after the Carling Cup defeat by Stoke that Jason Euell had suffered racist abuse from a home supporter at the Britannia Stadium.
Police interviewed the Blackpool striker following the third-round match after a man was ejected by stewards and then detained.
Euell was sitting in the dug-out when the incident happened during Stoke's dramatic 4-3 victory.
Holloway said: "There was one horrible moment when a racist remark was made to Jason by one supporter. I hope the fellow is banned for life.
"We do not want anything like that. Jason is a footballer - it should not matter the colour of his skin.
"It is disgusting. The stewards believed what Jason said and got him out. I have to thank them for that.
"People around the fellow should have said they were not putting up with what was said. It is wrong.
"I saw Jason's reaction and tried to calm him down. I thought these days were gone but maybe I am being naive."