Andy Ruiz knocks out Anthony Joshua to shake up heavyweight division

Anthony Joshua loses heavyweight titles after shock defeat to Andy Ruiz Jr in New York By Simon Smale Photo: Andy Ruiz is the first fighter of Mexican descent to win a heavyweight title.  Andy Ruiz Jr — who took on a heavyweight title fight with just five weeks\' notice — sensationally stopped British champion Anthony Joshua in the seventh round in New York on Saturday to record one of boxing\'s biggest ever shocks.    Heading into the fight a 30-1 underdog with some bookmakers, Ruiz, 29, becomes the first fighter of Mexican descent to win a heavyweight title. Not since Buster Douglas beat Mike Tyson in 1990 to claim the undisputed heavyweight title in Tokyo has a result shocked the boxing world so seismically — and few predicted that Ruiz would do the same here against undefeated champion Joshua. Joshua had started brightly, knocking down the portly figure of Ruiz — who weighed in 9kg heavier than Joshua at 121kg — in the third round. However, the challenger re