Pegula and Townsend send USA into BJK Cup semi-finals – Billie Jean King Cup – The World Cup of Tennis billiejeankingcup.comU.S. takes down Kazakhstan, into BJK Cup semis ESPNUnited States outlasts Kazakhstan in doubles to reach BJK Cup semifinal WTA TennisChina Billie Jean King Cup Tennis The Lufkin Daily NewsPreview Billie Jean King Cup Quarterfinals: Jessica Pegula and Elena Rybakina set for marquee showdown in USA vs. Kazakhstan tie Yardbarker
