LONDON (AFP) - Chelsea manager Jose Mourinho insisted on Friday he was not concerned by comments made by Tottenham Hotspur manager Andre Villas-Boas about the decline of their relationship.

"I don't discuss this with the media. It's a personal thing. I don't care what he says. I'm not here to do that. I'm not interested," Mourinho told a news conference on Friday.

Villas-Boas, who for seven years was a scout for Mourinho at Porto, Inter and Chelsea - when his fellow Portuguese was in his first spell in charge at Stamford Bridge - said Thursday their relationship had declined after he left to go his own way having failed to convince his mentor he deserved a more senior role.

Villas-Boas, speaking on Thursday, said: "Our break-up point was because I was full of ambition to give him something extra and I wanted further involvement from the job I was doing at that time.

"I felt I could give him much more. But he didn't feel the need for somebody near to him or in another position as an assistant, and because of that it was decided that it was time, after Inter Milan, to continue our careers (apart)."

He added: "We had a great personal and professional relationship before that we don't have now.

"I don't think we need explanations. But our relationship broke down."