LONDON - West Ham manager Sam Allardyce has warned fans who step out of line in Sunday's volatile clash at Tottenham that they will feel the wrath of the law.
Allardyce's east London outfit make the short trip across the capital to White Hart Lane for the first time since a section of their supporters brought shame on the club by chanting anti-Semitic abuse in the corresponding fixture in November last year.
Just four days after a Spurs fan was stabbed in an apparent anti-Semitic attack in Rome, a group of West Ham fans chanted "Viva Lazio" and "Can we stab you every week?" while some hissed, mimicking the gassing of Jews in the Holocaust.
With Tottenham and West Ham fans having a long history of violent clashes, there is widespread concern about more incidents at this weekend's derby.
West Ham have issued a strongly-worded warning to their fans that any repeat of that behaviour at Spurs, who have a strong link with the Jewish community, would result in a banning order and potential criminal charges.
"The club has made a statement so you will suffer the consequences if you do anything like that," Allardyce said.
"If they do it, I think that's very important that they are identified and they suffer the consequences.
"We live in this society today so if you're made aware of what's acceptable and what's not you've got to be very, very careful about what you choose to chant.