Thursday 14 February 2019 13:44, UK
Millwall manager Neil Harris said the club has moved heaven and earth to reduce discrimination and violence at games and will continue to do so.
The FA launched an investigation in January after claims Millwall fans used racist language in a song during the FA Cup win over Everton.
Millwall responded by closing a section of one of the stands at The Den and vowed to issue life bans to any supporter found guilty of racist abuse.
"The club has moved heaven and earth since I've been at here," Harris told Sky Sports News. "I think football has.
"It's not just football, it's society as well, but football is so paramount in our society that we have to work even harder to eradicate discrimination and violence in games.
"The work that goes on, certainly at our club, is monumental."
A Sky Data Poll for Sky Sports News released on Monday revealed that a third of fans have suffered racial abuse at football grounds and that 86 per cent of football fans who regularly attend matches in the UK have witnessed a racist incident.
Harris wanted all fans, not just those of Millwall, to support their team, but not to cross any lines.
"I'd remind all football fans to get with the programme, where we are," said Harris.
"It's 2019, we have to come away from the dark days, we have to make sure that equality is key.
"Turn up to football and enjoy it, turn up and support your team.
"That's my message to our fans and to all football fans: support your team, have banter, but don't cross that line."