West Ham United fans have been warned they will face action if they take part in anti-Semitic chanting towards Spurs fans on Saturday.
Spurs fans were subjected to anti-Semitic abuse from a section of West Ham fans during last season's fixture at White Hart Lane in November 2012.
"Working with the police, the Club will continue to adopt a zero tolerance policy towards any form of discriminatory behaviour," a club statement said.
"Any fan found to be acting inappropriately - including racist, anti-Semitic and homophobic behaviour - will be punished to the full extent of the law and banned from attending matches."
More top news
Google search now shows you when businesses and attractions are busiest.
The planning application said the museum would be dedicated to celebrating the achievements of East End women. Residents are very angry.
Aspiring rugby star Henry Fraser was paralysed in an accident 6 years ago - now his artistic talent is winning him famous sporting fans.