Novak Djokovic and Ana Ivanovic booked Serbia a place in the Hopman Cup final in Perth with a thumping 3-0 victory over Germany.
Djokovic hammered Tommy Haas 6-2 6-0 whilst Ivanovic crushed Tatjana Malek 6-0 6-1, and the Serbs will face Spain in Saturday's final.
The duo also reached the final in 2011, but did not take their place after Ivanovic suffered an abdominal strain.
World No 1 Djokovic - shocked by Australia's Bernard Tomic in his previous match - took a 4-0 lead in the first set before Haas broke him in the fifth game.
The German, back up to No 21 in the world after injuries nearly ended his career, held his serve for the only time in the match in the next game, to spark hopes of a recovery.
But they were extinguished immediately and the German veteran failed to win so much as a single game in the rest of the match.
"Right now, I believe I am where I need to be (for the Australian Open)," Djokovic said.
"Not 100 per cent physically, but I am getting there and we are still working on some things that will make me feel 100 per cent for Melbourne in 10 days.
"Tommy is always a tricky player and not one to underestimate on the court. I
tried my best, I was really focused from the start and I just felt drastically
better than in the first few days here in Perth."
Ivanovic continues to suggest she is back to somewhere near her best after a terrible couple of years, demolishing Malek in just 37 minutes.
The mixed doubles was not contested with Haas complaining of a toe injury, the fourth player to pull out of the tournament following compatriot Andrea Petkovic (knee), American John Isner (knee) and Frenchman Jo-Wilfried Tsonga (hamstring).
Isner's injury meant Spain's pair - Fernando Verdasco and Anabel Medina Garrigues - booked their place in the final without having to face the Americans.