British teenager Mika Stojsavljevic scored a major upset over Australia's Talia Gibson on her Billie Jean King Cup debut in Melbourne.
Stojsavljevic, 17, was a 7-6(4) 7-5 winner as she overturned a difference of 219 places in the WTA rankings.
The 2024 US Open junior champion gave Great Britain a perfect start in the qualifiers as Anne Keothavong's side look to progress in the absence of Emma Raducanu, Sonay Kartal, Katie Boulter and Fran Jones.
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Stojsavljevic went 3-1 ahead early on but needed a tie-break to take the opening set and successfully defended five break points before closing out a see-saw second which included five breaks of serve.
"It feels amazing. I can't believe it. I can't even remember the last point," Stojsavljevic said. "I had amazing support from the side and managed to get through."
