KEY BISCAYNE: Sorana Cirstea of Romania defeated Michelle Larcher de Brito of Portugal 7-5, 7-6 (9) first round victory at the Sony Ericsson Open on Tuesday and earned a second-round match with Venus Williams. Petra Kvitova of the Czech Republic beat Tathiana Garbin of Italy 6-4, 6-4 to set up a second-round match against reigning US Open champion and third-seeded Kim Clijsters. Other first round winners included Lucie Safarova of the Czech Republic, Gisela Dulko of Argentina, Shuai Peng of China, and Alicia Molik of Australia.