BOXING: Anthony Joshua shows off his insanely huge body as he gets in shape for Klitschko clash

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The 2012 gold medal winner, Anthony Joshua is hard at work whipping himself into shape ahead of his April 29th bout with Wladimir Klitschko. Anthony Joshua shared a photo on his Instagram page after a training session, showing off a huge upper body. He captioned the photo: 'Working out on the heavy bag.' Joshua is undefeated in 18 professional fights but he is up against the experience of Klitschko who has racked up 64 wins in a 21-year career. Joshua is unfazed though, he recently predicted he'll defeat the big Ukrainian via knockout.