The 22-year-old Spanish right-back has recently been strongly linked with a move to the Blues.
“For me, these are just rumours. There has been no contact, and I am still bound to OM until 2014,” the right-back told L’Equipe.
“Now, if the leaders of Chelsea want me, they should first discuss that with OM. If a proposal comes, I will think about it.
“It is more difficult to start in the national team when you do not play at a great club. You have to be at Real Madrid or Barcelona.
“But I feel good today at OM.”