Real Madrid defender Sergio Ramos said he is 'flattered' by interest from other clubs, but is willing to remain with the Spanish champions. The Spain international has been linked with a move to AC Milan and Chelsea, following a successful season at Santiago Bernabeu. "I am very sure that I am staying," he told Marca Radio. "I am flattered that great teams like AC Milan or Chelsea are interested in me. That is a sign that things are going well for me and drives you on to keep improving and playing better for Real Madrid. "I have a very long contract and the only thing I think about is retiring here. I am very comfortable with my team-mates, the club, the city and so are my family. "Also I feel calm. I have renewed my contract and I am very pleased with the deal I have, although one always aspires to improve and grow in every aspect."