No financial details of the deal were disclosed, but British media reported that the fee for Alonso was in the region of 23 million pounds.
"I'm very happy. It's a step up in my career and I think this is the perfect place for me to continue developing. It's time for me to win some titles," the Real Madrid academy graduate told Chelsea's website. (http://bit.ly/2bVF2PF)
"It was an easy decision for me to make when I heard the club were interested in signing me.
"My family and close friends know Chelsea is the club I have dreamed about playing for so I'm really excited about the challenge and I'm looking forward to working with my new team mates."
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(Reporting by Simon Jennings in Bengaluru,; Editing by Neville Dalton)
