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Chelsea have completed the signing of Valencia and Spain winger Juan Mata on a five-year deal.
The 23-year-old becomes Andre Villas-Boas' fourth signing of the summer, following the arrivals of Oriol Romeu, Romelu Lukaku and Thibaut Courtois.
Mata could make his debut in Saturday's clash with Norwich and moves to Stamford Bridge for a reported fee of £23.5million.