World number 76 Teichmann, who has overcome the likes of Naomi Osaka and Olympic champion Belinda Bencic at the tournament, swept aside fifth seed Plíšková 6-2, 6-4 to reach the final of the Women's Tennis Association (WTA) 1000 event.

Tomorrow's match with Barty, who defeated Germany's Angelique Kerber 6-2, 7-5 in her semi-final, will be the biggest match of Teichmann's career.

It is the 24-year-old's first final above WTA-250 level.

"I have been working a lot on many different aspects," Teichmann said.

"Mentally I have been working [on] my strokes and I have had injuries, so I had to work a lot physically, as well. 

"Long weeks, long hours - I guess just the positives getting together right now this week."

In the men's event, Andrey Rublev upset top seed and Russian compatriot Daniil Medvedev to book his place in a final against Olympic champion Alexander Zverev.

Rublev fought back from a set down to claim a 2-6 6-3 6-3 victory, the first of his career over Medvedev.

German Zverev ousted Greece's Stefanos Tsitsipas - who caused controversy at the event after he said he would not get the COVID-19 vaccine unless the Association of Tennis Professionals (ATP) Tour makes it mandatory - 6-4, 3-6, 7-6 in a gruelling encounter.

"In the middle of the second set I felt low energy and my stomach wasn't great," Zverev.

"I broke him at 4-2 in the third and went outside the court and did my thing.

"I started to feel better, the doctor came out and gave me a little medicine and my stomach started to calm down a little.

"The energy came back but I think that was also adrenaline."