The win also wrecked Jose Mourinho’s return to the club he guided to Champions League glory last season.

But the game was marred by a minority of Porto fans who derided both Didier Drogba and William Gallas with ‘monkey’ chants.

Angry McCarthy, whose header four minutes from time guaranteed Porto a place in the next round, was upset by the actions of his own supporters and slammed them as “stupid”.

McCarthy said: “In this life people have to grow up a little bit of it and I don’t see why people make those kind of noises. They do it to one black player but our team also has black players so we feel it too.

“People need to be more mature and think about these issues.

“We all want a better world and these things can start on the football field. We should show respect for all people whether they are a black guy, a white guy, Indian, yellow or blue or whatever.

“It makes me angry that my own supporters could do these things. I take it as well and am no different from Drogba or any other black player.

“If they make those remarks to other black players they make them to me as well. I’m not a white man, don’t they understand?

“There are a lot of stupid people at Porto but if we make a big deal out of it things will get even worse. I just try to forget about it and play like it doesn’t exist. I’m not going to stress myself over these stupid people.”

UEFA are expected to decide today if any action is to be taken against the Porto fans but while McCarthy hit back at the chanting, Chelsea skipper John Terry and midfielder Frank Lampard denied hearing anything during the game.

The racist comments come after England’s black players faced the same type of abuse during their recent friendly with Spain.