Andy Murray has lost 11 pounds since hanging up his racket for good at the Paris Olympics last month . But the former Wimbledon champion admits he hasn't stepped foot in a gym since the first few days of his retirement, despite promising his wife, Kim, that he would do so. Murray cut a lean figure on the course at Wentworth on Wednesday in the Celebrity Pro-Am, which takes place before the BMW Championship . And he revealed his new physique certainly wasn't forged in a gym, even if he did plan

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