It's called "Hitting back" and comes out on 7th June, you can pre-order it on amazon.
Personally I think it's too soon for an autobiography, he's only 20 !!! Even the likes of Federer and Henman haven't brought out autobiographies yet ! Will still be interesting but it would be even more so if he waited 5-10 more years and then wrote one.
Already?! Shocking, by the time he's actually old enough for an autobiography it'll be edition 24 or something
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Of all tyrannies a tyranny exercised for the good of its victim may be the most oppressive.... those who torment us for our own good will torment us without end for they do so with the approval of their own conscience