Eurosport - Fri, 19 Mar 21:30:00 2010
World number one Serena Williams has pulled out of next week's Sony Ericsson Open due to a knee injury, according to tournament organisers.
Williams has won the Key Biscayne event five times.
Venus Williams and Svetlana Kuznetsova headline the women's field while the men's top three - Roger Federer, Novak Djokovic and Rafael Nadal are joined by American Andy Roddick and defending champion Andy Murray.
The men's competition will be without fifth-ranked Juan Martin del Potro of Argentina due to a wrist injury.
WTA Indian Wells
Final - Sunday 21st March 6.30pm LIVE on British Eurosport (Sky 410 / Virgin 521) and Eurosport Player