4 Oct 2008

Del Porto and Roddick through to Japan Open semi-finals

3:20 pm on 4 October 2008

The Argentine Juan Martin Del Potro has ended top seed David Ferrer's reign as Japan Open champion, with a 6-1, 7-5 quarter-final victory.

The American second seed Andy Roddick is also through to the final four, after cruising past Serbia's Viktor Troicki 6-3, 6-4.