Anthony Joshua has set his sights on a heavyweight showdown with American Deontay Wilder after claiming a unanimous points victory over Joseph Parker in Cardiff. Joshua's former coach says "he is capable of doing that" despite it being "tough" match up. Sean Murphy added that he believes AJ is the perfect role model for young boxers and that the "world is his oyster" now. Report by Chulanin. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn