Novak Djokovic warned Wimbledon rival Cam Norrie at 'insane' level that would kill others

Cameron Norrie's coach claims his little chicken has turned into a dog this fortnight at Wimbledon - with the heart of a lion. And if opponents worry about his extraordinary athletic powers on the tennis court, they should try playing him at cards.

Argentinian Facundo Lugones has worked with Norrie since he was a teenager at Texas Christian University in Fort Worth. He has taken him from a somewhat lost fledgling into a man just one game away from the Wimbledon final - albeit a match against Novak Djokovic awaits in the semi-finals.

He explained: "In Argentina when you're taking care of someone, you call them, 'your chicken,' like you're taking care of him. When I started travelling with him, all my friends would ask me, 'How is your chicken doing?' That's why I call him that still. Mind you, he's become a dog now. He's not a chicken anymore."

Dog as in dogfight, it seems, as there is not a moment on or off the court that Norrie is not competing over something. "He plays a lot of games with his fitness trainer, Vasek," Lagunes revealed.

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Ted Kravitz