Less than 16 hours after she defeated Serena Williams 6-4, 6-0 to eliminate her from the Western & Southern Open,
The 19-year-old will undoubtedly have a difficult time against seventh-seeded Jennifer Pegula in the round of 16.
During her on-court interview, she remarked, "I was playing a great match for sure and to play Vika I had to be concentrated throughout.
"In the second set, I could feel key moments and a few pivotal points that might have made the second set very challenging.