Impressive wins for Sonay Kartal and Katie Boulter powered Great Britain into its second Billie Jean King Cup by Gainbridge semi-final in as many years

Taylor Townsend and Jessica Pegula secured the USA’s place in the last four of the Billie Jean King Cup by Gainbridge semi-final, after an absolute battle with Kazakhstan

The doubles partnership of Jessica Pegula and Taylor Townsend guided the USA to the semi-finals of the Billie Jean King Cup by Gainbridge

The seven ties at the World Cup of Tennis will be broadcast to fans around the globe

<p>Few athletes have impacted world sport in the way Billie Jean King has, and that applies to this competition more than most. BJK's lasting imprint is best summed up by the fact the tournament is literally now named in her honour.</p><p>&nbsp;</p><p>As a 19-year-old, she competed in the winning USA team at the inaugural Federation Cup event at Queen's Club, London back in 1963. She has been wrapped up in its history ever since. King has lifted the trophy more than any other person in history, with 10 wins as player and captain. She did that alongside her other incredible achievements on the court, including 39 Grand Slam titles, being a co-founder of the Women's Tennis Association (WTA), and pushing for equal prize money at the majors.</p><p>&nbsp;</p><p>Throughout this wide-ranging conversation, she discusses which women sparked her tennis imagination as a child, how she manages the responsibility of being a leader, and what it was like to captain a USA team that included Monica Seles, Lindsay Davenport and the Williams sisters.</p><p>&nbsp;</p><p>What is the series about?</p><p>&nbsp;</p><p>'On Her Shoulders' presented by e.l.f. is an in-depth interview series with incredible women who make up the past, present and future of the Billie Jean King Cup by Gainbridge.</p><p>&nbsp;</p><p>Launching through a conversation with the incomparable Billie Jean King herself, tennis journalist Molly McElwee speaks to players, captains, and leading figures in the women's World Cup of Tennis whose careers and stories are a source of inspiration to fans around the world.</p><p>&nbsp;</p><p>Throughout these conversations, which will be available on the BJK Cup YouTube channel, Molly explores themes of leadership, teamwork, what it means to be a positive disruptor, and which women have lifted them up throughout their careers.</p>