17-year-old Mika Stojsavljevic delivered a stunning debut performance at the Billie Jean King Cup, defeating Australia's Talia Gibson in straight sets. The world number 275 upset her higher-ranked opponent 7-6 (7-4) 7-5, giving Great Britain a 1-0 lead in the Melbourne tie. Stojsavljevic saved five break points in the critical penultimate game before converting her first match point in just over two hours of play.

The victory carries extra significance as Britain fields a depleted team missing top players Emma Raducanu, Sonay Kartal, Katie Boulter, and Fran Jones. Stojsavljevic, the second-lowest ranked British player, balanced her tennis career with GCSE exams last year while winning the 2024 US Open junior championship. Her aggressive playing style proved effective against Gibson, who is ranked 65th in the WTA rankings.

Britain's Harriet Dart faces Kimberly Birrell in Friday's second singles match with doubles and reverse singles to follow Saturday. The winner secures advancement to the eight-team finals in Shenzhen, China this September, while the loser confronts a play-off in November. Stojsavljevic's remarkable debut demonstrates Britain's depth beyond their top-ranked players.