WESLEY CHAPEL, Fla. — CoCo Vandeweghe and Bethanie Mattek-Sands defeated Kristyna Pliskova and Katerina Siniakova 6-2, 6-3 Sunday to send the United States to its first Fed Cup final in seven years with a 3-2 semifinal victory over three-time defending champion Czech Republic. The Americans will face Belarus, which won its semifinal against Switzerland, for
