Philadelphia Freedoms (1974) Dick and Ken Butera as a charter member of WTT in 1973. The team began play in WTT's inaugural 1974 season. The Freedoms played their home matches at the Spectrum. The centerpiece of the team was tennis legend Billie Jean King who served as its player-coach. King became the first woman to coach a professional sports team that included male players. Once King was signed on with the Freedoms, her good friend Elton John decided to write and record the song "Philadelphia Freedom" to wish her luck on her new venture with WTT and for the team to use as
2009 Billie Jean King Cup Ivanovic 6–3, and Venus Williams won hers 6–4 against Jelena Janković. The final was won by Serena 6–4, 6–3. Between the semifinals and final a tribute was paid to tennis legend and pioneer Billie Jean King. The tribute featured a speech by former president Bill Clinton, and appearances by figure skaters Sarah Hughes and Nancy Kerrigan, race car driver Janet Guthrie, Billie Jean King's long time double's partner Rosie Casals and other prominent women in sports. A portion of the proceeds from the 2009 event benefited the Dream Vaccines Foundation and the Women's Sports Foundation. The 2009 Billie Jean King