Aryna Sabalenka says she "really wants" to create history by setting up an all-Belarusian contest against Victoria Azarenka in the Australian Open final.
Fifth seed Sabalenka then faces Poland's Magda Linette in the second.
However, two Belarusians competing for a Grand Slam title would likely lead to more discussion about a divisive political issue in sport.
Belarusian athletes are banned by a number of sporting governing bodies because of the country's support for Russia's invasion of Ukraine.
Sabalenka has previously said "no-one supports war", adding she was "really disappointed" politics had interfered with sport after Russian and Belarusian players were banned from Wimbledon last year.