Chelsea signed Spain winger Juan Mata from Valencia for an undisclosed fee on Wednesday.
Mata agreed a five-year contract with the Premier League club after passing a medical and then trained with his new team-mates for the first time.
“Juan Mata completed his transfer from Valencia today, and will be available for Saturday’s game against Norwich having already trained with the squad at Cobham earlier,” a statement on the club’s website confirmed.
“Right from the first moment there have been good feelings all around me,” said Mata.
“Training has been great and the players are a great group to train with.
“Valencia was a big club anyway but I have left to join a bigger club and it is all about the opportunity to win trophies and I have that here.”
Mata claimed that Chelsea coach Andre Villas Boas played a big part in convincing him to move to Stamford Bridge.
“He said he wanted Chelsea this season to play more attacking football, and that I would be a big part of that,” divulged the Spaniard.
“Villas-Boas is someone who won almost everything last year and we are both here with the idea of winning lots this season.
“The plan is that I can play on either flank or even in the middle playing in between the lines of midfield and attack. I like to keep the ball and use it well, I am an attacking player and above all I like to set up goals and score them also.
“I want to adapt as quickly as possible to my new surroundings, my colleagues and this league, and I would love to win a trophy in my first season.
“If it can be the Premier League – then great!”