Martinez leaves Villa after six years at the club, having played a key role in their rise up the Premier League and their recent European success.
Chelsea have completed the signing of Argentina World Cup winner Emiliano Martinez from Aston Villa.
The 33-year-old has signed a three-year contract at Stamford Bridge after the clubs agreed a reported £7.5 million deal.
The Golden Glove winner is expected to challenge for the number one spot this season, as well as bringing a wealth of experience.
Martinez leaves Villa after six years at the club, having played a key role in their rise up the Premier League and their recent European success.

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