Carlos Tevez's agent Kia Joorabchian admitted the frosty relations with Gary Neville, could spill over into Wednesday's encounter. Joorabchian, speaking on BBC Radio 5 Live's Sportsweek programme, said: "Carlos played two years at Manchester United and he has very good relationships with a lot of the players. He admires and likes Wayne Rooney and Patrice Evra and Ryan Giggs and he considers a lot of them friends of his.
"I don't think he will expect to have any atmosphere in relation to the players. But I guess he and Gary Neville are not going to be very good friends any time shortly."
Joorabchian, meanwhile, insisted that Tevez is not bitter at leaving Manchester United and his dispute is with Neville alone.
Joorabchian said: "If you don't have respect and class you have to accept that they are entitled to say something back. Gary Neville stepped into something that maybe he shouldn't have done and since he didn't have that respect Carlos felt he had to answer.
"I don't think he (Tevez) has ever been bitter to Manchester United.
"I don't think Carlos came anywhere near hitting his peak at Manchester United. In the next three or four years he has a lot more to offer."
The player's advisor also believes the spat with Neville has only increased the anticipation around the match.
He said: "When I went to the City match I saw an atmosphere which was absolutely unbelievable, a great vibe, so much passion in it.
"This little bitter matter has done nothing but improve this passion and it will give us an even greater build-up and a greater excitement."
