Mata said: "It is true that teams have been linked with me but this is a good sign that I am playing well.
"Despite all the rumours, I have to stay calm and step away from all the speculation. I am well aware of the rumours but this is not the first summer I have had to deal with this so they do not worry me.
"My aim now is to make sure I am ready for the start of the new season and keep improving as a player. I want to win more trophies."