Porto defender Bruno Alves is flattered by interest from Real Madrid.

"Their interest is welcome and it is an honor for me to be linked with a club like Real Madrid, but now I'm player of Porto and have important goals in the knockout quarter-final against Manchester United in the Champions League," said Alves.

Only last week, Alves changed agents to Jorge Mendes, who also has Manchester United star Cristiano Ronaldo on his books.