Tennis round-up: Del Potro sets up Ferrer semis at Auckland

IMAGE: Argentina's Juan Martin Del Potro plays a forehand in his quarter-final against Russia's Karen Khachanov at the ASB Men's Classic at ASB Tennis Centre in Auckland on Thursday. Photograph: Phil Walter/Getty Images Juan Martin del Potro kept his Australian Open preparations on track with a 7-6(4), 6-3 win over Russia's Karen Khachanov in the Auckland Classic on Thursday, setting up a semi-final meeting with David Ferrer. Former US Open champion Del Potro fired down 11 aces and did not ...