Anthony Joshua refused to accept a charity bet with Kevin Johnson as the two heavyweights squared off ahead of their clash in the new year. The American, who has never been stopped in his 36-fight career, offered to donate 50 per cent of his purse to a cause of Joshua’s choice if he knocked him out. But the Olympic champion was reluctant to agree to the deal during an entertaining press conference. VIDEO Scroll down for Anthony Joshua refuses charity bet with Kevin Johnson Anthony Joshua and Kevin Johnson square up at a press conference on Wednesday Joshua refused to accept the charity bet offered by Johnson (far right), saying he'd rather focus on the fight
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American offered to donate 50 per cent of his purse if AJ knocked him out
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Joshua was reluctant to agree during press conference on Wednesday
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Heavyweights go head-to-head  at the O2 in London on January 31
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Joshua has won his first 10 professional fights by stoppage
@placeholder was unmoved and added: 'If you get me within five, I'll donate 75 per cent.'