AIX-EN-PROVENCE, France -- Defending champion United States will play in a second consecutive Fed Cup final after defeating France on Sunday.
Madison Keys secured the decisive point for the visiting team by beating Pauline Parmentier 7-6 (4), 6-4 in the second reverse singles. Keys' victory gave the defending champions an insurmountable 3-1 lead over France in their semifinal.
The 13th-ranked Keys, a late replacement for CoCo Vandeweghe, came back from a 4-1 deficit in the first set and made the decisive break in the ninth game of the second set with two consecutive winners.
"The girls did so well, both today and yesterday. We are very fortunate to have such a strong group and now we are looking forward to what is going to be a great final," U.S. captain Kathy Rinaldi said.
Parmentier fought hard until the end and saved two set points in the opener, but ultimately surrendered to Keys' deep groundstrokes. The Frenchwoman had the chance to break back while trailing 5-4 in the second set but Keys used her big serve to win the next three points and seal the match.
The U.S. will play the Czech Republic in the final.
The US Open champion delivered a ruthless display against the 20th-ranked Mladenovic and prevailed in 54 minutes. Stephens hit 16 winners and converted five of six break chances at the 6,700-capacity Arena Pays d'Aix on indoor clay.
"That was a really good one. You never anticipate a scoreline like the way it turned out but it was really solid," Stephens said. She also won her first singles match on Saturday.
The Americans extended their winning record to 12-2 against the French.
The Czech Republic qualified for the final by defeating Germany 4-1 in Stuttgart.