One of the biggest shake ups of the 2011 Delaware Investments U.S. Open was during the quarterfinals of the women’s event when sixth seed Kasey Brown, ranked #6 in the world at the time, beat the robust and long-standing world #1 Nicol David.

One of the biggest shake ups of the 2011 Delaware Investments U.S. Open was during the quarterfinals of the women’s event when sixth seed Kasey Brown, ranked #6 in the world at the time, beat the robust and long-standing world #1 Nicol David.