Maria has entered the Family Circle Cup in Charleston, South Carolina which runs from April 14-20. Charleston is a tier 1 and is played on green clay.
Charleston is 1 of only 2 events played on green clay on the Sony Ericsson WTA tour, the other is Amelia Island. Green clay is faster than red clay and is good preparation for the events in Europe played on red clay.
Maria has played here once before way back in 2003 when she battled through the qualifying and lost in the 1st round.