Mika Stojsavljevic, ranked 275th globally, made a stunning debut in the Billie Jean King Cup, defeating world No 65 Talia Gibson 7-6 (7-4) 7-5, giving Great Britain a crucial lead over Australia in Melbourne. The 17-year-old, who recently won the US Open junior title, overcame a 219-place difference in the WTA rankings. Stojsavljevic's victory, followed by Harriet Dart's comeback win against Kiimberly Birrell, has brought Britain one win away from qualifying for the finals in Shenzhen, China. Dart will team up with Jodie Burrage in the doubles match against Storm Hunter and Ellen Perez to potentially seal the win for Britain.