Andy Roddick set up a blockbuster fourth-round clash against Juan Martin Del Potro at the US Open as he kept the fat lady at bay for at least a couple more days.

Andy Murray will hope to show how far he has come in 18 months when he takes on Russia’s Alex Bogomolov in the first round of the US Open later today.

Venus Williams came through an entertaining quarter-final with Francesca Schiavone to make the last four of the US Open.

Venus Williams will aim to succeed where her sister failed this evening as she targets a place in the US Open semi-finals.

Maria Sharapova broke her semi-final jinx to set up a clash with Justine Henin-Hardenne by putting out world number one Amelie Mauresmo at the US Open.