The Sony Ericsson Open returns on 25 March - 4 April 2009. The action takes place at the Crandon Park Tennis Centre in Miami, Florida. This prestigious Premier tournament, nicknamed the "Fifth Grand Slam", is designated as a mandatory event by the WTA so a top-class field is guaranteed. 96 women compete on outdoor hard-courts for the singles prize, with a fund of $4,500,000 to be fought over.