Top seed Serena Williams was knocked out of the ASB Classic in Auckland in the second round by fellow American Madison Brengle today.

Maria Sharapova will face the new hero of American tennis for the second year running at the US Open after booking her place in the third round at Flushing Meadows.

Third seed Venus Williams survived a major scare at Flushing Meadows as she came from a set down to beat Vera Dushevina on the first night at the 2009 US Open.