A mum whose son was stabbed to death has said all football clubs should take part in their own anti-knife crime campaign.
Middlesbrough players and fans supported the No More Red day at Saturday's match against Coventry City, where they ditched the traditional red strip, shirts and scarves for other colours.
Co-organiser Theresa Cave, who set up the Chris Cave Foundation after her son was murdered in Redcar, Teesside, in 2003, said the support was "phenomenal".
"The kids were coming forward and waving and saying 'no more knives'," she told BBC Radio Tees.
Her 17-year-old son was stabbed to death by Sean Matson two decades ago in an unprovoked attack.