CLEVELAND -- Karin Knapp won her second match of the weekend to give Italy a 3-1 win over the United States in the first round of the Fed Cup World Group on Sunday.
Knapp defeated American Alison Riske 6-3, 7-5 to secure Italy's victory in the best-of-five series.
She held a 5-2 lead in the second set, only to let Riske tie it at five. But Knapp regained the momentum and closed out the match.
"I got a little bit nervous, I got a little bit of emotion," Knapp said. "But I tried to continue my game, to hit the ball hard, to command the game."
Knapp also defeated Christina McHale on Saturday, 6-3, 3-6, 6-1. Camila Giorgi defeated Madison Keys 6-2, 6-1 in Saturday's second match.