The Spanish ace has not played as much as he would have liked since the return of Jose Mourinho leading to speculation linking him with a move to the likes of Paris St Germain and Tottenham.
However Mata impressed when scoring one of the goals in Tuesday night's 2-0 Capital One Cup win at Arsenal and says he will continue to fight for his place in the side.
"I am happy at Chelsea. I have always felt the support of the fans - in every game, on the street - I have felt the love from them," Mata revealed. "I try to play for them, score for them and make them happy. We have great support.
"I want to play as much as I can, but if you want to win titles you need 24-25 players ready to play. Anyone can play any game. I always train my best and try to do my job the best I can.
"I have to be ready to play at my best at any time and that's what I do."