Karin Knapp won her second match of the weekend and gave Italy a 3-1 win over the United States in their Fed Cup first-round match on Sunday. Knapp defeated American Alison Riske 6-3, 7-5 to give Italy the victory in the best-of-five series. Camila Giorgi defeated Madison Keys 6-2, 6-1 in Saturday's second match. ''She was serving really well today.'' Lauren Davis and Madison Keys of the United States earned a 6-2, 6-3 win in the doubles match against Nastassja Burnett and Alice Matteucci. More...