Karolina Pliskova advances to third round of the 2021 Australian Open

Pliskova is another Czech player, No.25 seed Karolina Muchova, who eased past German veteran Mona Barthel, 6-4, 6-1.

"Today I think I played a bit of a better level than I did in the first match. I felt better and I stayed in the rallies. The first set was a bit shaky, but then in the second, I just went all the way and I'm happy with that," Muchova said. 

"I felt like I could play rallies with her. I went for my shots, finished at the net and had great returns, so I'm just happy with today's performance."