Chelsea Football Club is committed to stamping out all forms of anti-semitism and for Sunday's game against Tottenham there will be increased police surveillance inside Stamford Bridge.

This surveillance will include more uniformed police officers in the ground. In particular the Matthew Harding Lower will see an increased police presence.

Anti-semitism is racist and anyone caught making anti-semitic chants will be banned from Stamford Bridge for life and if there is sufficient evidence will be subject to a criminal prosecution.

It is not an excuse to chant anti-semitic abuse because opposition supporters use particular words as a form of identity.

Chelsea has been praised in the past for the huge strides made in tackling racism at Stamford Bridge and we want that to continue.

A club statement said: 'Chelsea is proud of its record in tackling racism and stamping out anti-semitism is part of that.

'The diversity at Chelsea is obvious to all. The players on the field of play, the fans watching them in the stadium, and the religious background of some of our directors and owner all illustrate our vision as a multi-racial club of which we are very proud.

'Today's match against Spurs is a great opportunity to show this. We urge all supporters to respect this and, if there is any abuse, report it. Anti-semitism is unacceptable, shames the club and the vast majority of our very well behaved fans and jeopardises what coming to Stamford Bridge should be about.'

If anyone hears racist chants of any sort during the match it should be reported to a police officer or steward or after the game you can ring Chelsea on 020 7915 1919, or Crimestoppers on 0800 555 111 or Kick It Out on 0800 1699 414. During the game you can text an incident to 07894 937 793.

Please try and note the stand, row and seat number of the culprit as well as their physical appearance, height and build.