Nine Chelsea supporters’ groups today launched an unprecedented joint campaign to eradicate racist and abusive behaviour from the club’s fanbase once and for all.

Using the tagline Chelsea Together, which will have its own Twitter handle, the groups are urging all the club’s supporters to unite in their pledge to end discrimination.

Chelsea have been under scrutiny for a number of high profile incidents of late. Four supporters were suspended from Stamford Bridge after Raheem Sterling suffered abuse — some of it allegedly racist — during last month’s League match against Man City, while Uefa confirmed earlier this week that they have opened disciplinary proceedings against the club for alleged anti-Semitic chanting at the Europa League group game against MOL Vidi in Budapest just days later .

European football’s governing body will reach their verdict on February 28 and Stamford Bridge could face partial closure for their last-16 tie, should they get past Malmo, if found guilty.

The groups — the Chelsea Supporters Trust, Chelsea Pride, We Are The Shed, The Chels podcast, Chelsea Fancast podcast, London is Blue podcast, CFC Fan TV, We Ain’t Got No History website and The Podding Shed podcast — have launched the scheme independently of the club and are determined to stamp out unacceptable behaviour.

Tracy Brown, from Chelsea Pride, told Standard Sport: “This is us getting together and saying enough is enough. We are tired of the negative reputation that the minority is bringing on our club. It needs to stop and it needs to stop now. The point of us being a joint voice is that between us we cover so many fans and we want to get that message heard. We want to break down discrimination that is rife among a section of our fans and also against what other fans sing back at us. Most people think it’s banter. It’s not, it’s an embarrassment.

“You tell someone to pack it in and they’ll respond, ‘Well, don’t come to football if you don’t like it’. I think it’s them who shouldn’t be coming to games.”

The supporters behind Chelsea Together used the first leg of the League Cup semi-final against Tottenham as a trial run on social media to tell those going to the game to get behind the team positively.

The second leg is at the Bridge next Thursday and Dan Silver, of the Chelsea Supporters Trust, said: “Messages have been made loud and clear that use of the Y-word is anti-Semitic. If you continue to do it, you’re just being stupid.

“There are so many Spurs songs that you can sing, you don’t need to go down that route. I’m fed up with people assuming I’m a racist because I support Chelsea.”