John George Terry (born 7 December 1980) is an English professional football coach and former player who played as a centre-back. He was previously captain of Chelsea, the England national team and Aston Villa. He was most recently the assistant head coach at the latter. Regarded as one of the best defenders in the world at his peak, he is considered to be one of the greatest central defenders of his generation, as well as one of the best English and Premier League defenders ever.