At 80, the tennis figurehead has had as much impact on sport as perhaps anyone in her lifetime. She isn't ready to stop now.

You can also watch the Billie Jean King Cup with a virtual private network like NordVPN. Use the VPN to stream live coverage of the tournament through BBC in the UK, beIN Sports in France or CBC in Canada. Set your VPN location to the country of your choice and live stream the tennis tournament free with those international broadcasters.

Japan reached the quarterfinals of the Billie Jean King Cup Finals for the first time since 2013 after rallying to defeat Romania 2-1 on Thursday. Japan advanced when Eri Hozumi and Shuko Aoyama defeated Monica Niculescu and Elena Ruse 6-1,