Nick Lester - US Open quarter-finals podcast

Novak Djokovic dropped just three points on serve in his fourth round match against Marcel Granollers, routing the Spaniard 6-3, 6-0, 6-0. Next up for the world number one is Mikhail Youzhny.

Andy Murray will feel fortunate to have avoided a quarter-final date with Tomas Berdych, however his conqueror, Stanislas Wawrinka, will pose a serious threat to the defending Champion.

Sky Sports commentator Nick Lester looks at the men's quarter-final matches, two women's quarter-final matches and the semi-final between Serena Williams and Na Li on this edition of the podcast.