No. 1 Roger Federer opened defense of his Pacific Life Open title with a methodical 6-3, 6-3 victory over Mardy Fish on Sunday. In an upset on the women's side, Russian teenager Evgenia Linetskaya defeated No. 2 Amelie Mauresmo 2-6, 6-2, 7-5 in a third-round match. Linetskaya, an 18-year-old from Moscow, is ranked No.