Arsenal and Tottenham will make joint statements appealing to fans ahead of Emmanuel Adebayor's first match at the Emirates since moving back to North London.
Spurs' Togolese striker, who spent more than three years at the Gunners, had abusive chants aimed at him in past fixtures between the two rivals.
Ex-England defender Sol Campbell has also been targeted after playing for both clubs in his career.
But the clubs have joined together to appeal to fans before this Sunday's Premier League clash.
They will ask for a focus on positive chanting towards their own teams.