"The relationship with Frank is very good," the former Athletic Club No.1 told was speaking to Spanish Media Outlet Marca.
"He has shown me confidence from the first moment. He must make decisions, but I feel I have his confidence, both his and that of the whole club. We all like to play in every game.
"It is true that, in the last 10 years, Chelsea is the English team that has won the most titles, and I think we should have that ambition.
"In fact, I came here for that and in the first season, we already achieved the Europa League. We have a young team.
"Then came the penalty of not signing players (the transfer ban) but you have to keep fighting for titles. I want to win everything with Chelsea and with the national team."