Angelique Kerber won her singles match and helped decide the mixed doubles victory that gave Germany a 2-1 win over Australia and a spot in the Hopman Cup final against Switzerland.
Germany have won the Hopman Cup twice, but not since Boris Becker and Anke Huber teamed up in 1995.
However, they must now beat Swiss great Roger Federer and partner Belinda Bencic to add a crown in 2018.
Federer narrowly missed out on making the final with Bencic last year, but now has the chance to add a second Hopman crown after winning in 2001 alongside Martina Hingis, when he was the tender age of 19.
When is the Hopman Cup final?
The final is on Saturday 6 January.
Play between Federer and Alexander Zverev is scheduled to start at 4pm (8am UK time).
What TV channel can I watch the Hopman Cup on?
Coverage of the Hopman Cup, will be shown by Eurosport in the UK.
Eurosport 1 and 2 is available to subscribers who have the Eurosport network as part of their package on channels 410/412 (HD) and 411/443 (HD).
Hopman Cup 2018 live stream
Fan who want to watch the Hopman Cup final online will have to buy a Eurosport Player pass.
Day passes cost £4.99 while an annual pass cost £29.99 and gives you access to both channels on a range of devices all year round.
What are the odds?
Swizerland – 8/15
Germany – 11/8