Queenslanders Bernard Tomic and Ashleigh Barty kept Australia's Hyundai Hopman Cup title hopes alive with an upset 2-1 win in last night's tie against Italy's Andreas Seppi and Francesca Schiavone at Perth Arena.
Tomic maintained his stellar form with a straight-sets victory over Seppi before teenager Barty caused a massive boilover to dispose of 2010 French Open champion Schiavone.
The Italians gained some consolation with a 2-6 6-4 10-3 win in the dead mixed-doubles rubber.
A victory by Germany's Tommy Haas and Tatjana Malek against top-seeded Serbians Novak Djokovic and Ana Ivanovic tonight would give No.8 seeds Tomic and Barty a place in tomorrow's final against Spain's Fernando Verdasco and Anabel Medina Garrigues.
The host nation's only Hopman Cup win came in 1999 when Jelena Dokic and Mark Philippoussis defeated Sweden's Jonas Bjorkman and Asa Carlsson 2-1.
Tomic's 6-3 7-5 victory over world No.23 Seppi came 24 hours after he dispatched world No.1 Djokovic 6-4 6-4.
Barty, a replacement for the injured Casey Dellacqua, could not have been more impressive in her 6-0 6-3 demolition of Schiavone.
Tomic broke Seppi's serve in the fourth game of the first set and 11th of the second.
It was another measured performance from a more mature, physically fit and focused Tomic.
The 20-year-old said his Perth campaign couldn't have been any better ahead of next week's Sydney International and the Australian Open, starting on Monday week.
"I think I played really well against Novak last night and today was really good as well," Tomic said. "The last few months were very hard. I was focusing a lot on my fitness and my serve and I've been seeing lately it's been paying off and that's what you need to do to play against these top players.
"I'm happy I've trained really well and prepared for this and now I've won three matches that are really important for the summer of tennis in Melbourne."
Tomic, who has rated the new Arena as one of the best venues he has played in, said he was glad to have played in Perth instead of the Brisbane International.
"To come here for the first time, and you know, play amongst players here with a crowd like this is a huge feeling," he said.
"I can't ask for anything better."
Barty showed remarkable composure, breaking Schiavone's serve three times in the opening set and twice more in the second to notch the biggest win of her career.
"This is amazing, coming to Perth and playing," she said. "I've been given this opportunity to play for Australia and it's been unbelievable.
"I've had a great week with Bernie and I'm just happy I can contribute and get a win." The 16-year-old described her win as "insane" and said it surpassed her 2011 junior Wimbledon title success.
I've been given this opportunity to play for Australia and it's been unbelievable." *Ashleigh Barty *