<P> Andy Murray and Serena Williams were the defending champions in the singles events . Williams successfully defended her title , but Murray was defeated in the quarterfinals by Stanislas Wawrinka . Rafael Nadal won the men 's singles . </P>
<P> Andy Murray and Serena Williams were the defending champions in the singles events . Williams successfully defended her title , but Murray was defeated in the quarterfinals by Stanislas Wawrinka . Rafael Nadal won the men 's singles . </P>
who won the us womens open in 2013
who won the us womens open in 2013
Serena Williams
Serena Williams