Chelsea have signed Cesc Fabregas from Barcelona.
The 27-year-old has joined on a five-year contract and will wear the no. 4 shirt, the club announced on their website this afternoon.
Fabregas said: "Firstly I would like to thank everyone at FC Barcelona where I enjoyed three wonderful years. It was my childhood club and I will always be proud and honoured that I had a chance to play for such a great team.
"I do feel that I have unfinished business in the Premier League and now is the right time to return.
"I considered all the other offers very carefully and I firmly believe that Chelsea is the best choice. They match my footballing ambitions with their hunger and desire to win trophies. They have an amazing squad of players and an incredible manager. I am fully committed to this team and I can't wait to start playing."
Fabregas arrives at Stamford Bridge following a three-year spell at Barcelona during which he helped the Catalan club win the La Liga title, Copa del Rey, Spanish Super Cup, UEFA Super Cup and FIFA Club World Cup.
He is no stranger to the Premier League having enjoyed an eight-year spell with Arsenal prior to moving to Camp Nou.
However, with some of the biggest clubs in Europe chasing his signature, his departure from the Emirates was almost inevitable, and so it proved when he returned to the club that had nurtured him.