Charlton and Millwall are combining at The Valley this weekend to send out a powerful message against street violence.
In place of their usual sponsors will be a 'Street Violence Ruins Lives' logo, while the south London derby will be dedicated to the memories of Rob Knox and Jimmy Mizen, two young supporters of the two clubs who were murdered in such incidents during 2008.
Charlton chief executive Steve Waggott said: "Street violence is a huge problem in our society. This game will really help to raise the issue in the minds of football fans and the wider community. We are calling on all football clubs across the UK to come together and create a dedicated awareness day every season for this social issue."
He added: "I would like to take this opportunity to personally thank the two sponsors, KRBS and CYC Logistics, for being such a fundamental part of this campaign. To remove their logos from the front of the shirts highlights their corporate social responsibility and has really helped make this a unique tribute."
Lions chief executive Andy Ambler added: "Millwall is proud to be part of such a forward-thinking and powerful initiative, and we are delighted to be able to unite with Charlton and show that on-field rivalries are put aside for important issues such as tackling street violence."