=3. Juan Mata | Chelsea

Market value: £39.5 million

Mata was a relative bargain for Chelsea when he signed from Valencia in 2011 for £24.5 million and whilst his first season was impressive it was nothing compared to his second.

With 18 goals and a grand total of 35 assists, he went from strength-to-strength to win Chelsea’s Player of the Season award for a second year running.

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