sentences:  The draw was conducted on Saturday, November 3 by retired Spanish tennis player, Arantxa Sánchez Vicario, Sony Ericsson WTA Tour CEO Larry Scott, and player representative to this tournament, Anna Chakvetadze.Players were divided into two groups, red and yellow, in honor of the colors of the Spanish flag.After the draw in singles had been determined, the next two players who would be accepted into the Sony Ericsson Championships, based on total WTA Tour Ranking points in 2007, became the alternates.