US Open Tennis 2012 4th September 2012

Serena Williams of USA in action at the ...

Serena Williams of USA celebrates on match point ...

Serena Williams of USA shakes hands with Andrea ...

Serena Williams of USA hits balls into the ...

Serena Williams of USA reacts in surprise as ...

Serena Williams of USA signs autographs at the ...

Serena Williams of USA walk past an amputee ...

An amputee ball-boy in action at the US ...

Serena Williams of USA in action at the ...

Serena Williams of USA celebrates at the US ...

Serena Williams of USA in action at the ...

Andrea Hlavackova of Czech Republic in action at ...

Pippa Middleton watches the action at the US ...