The 19-year-old battled past the two-time finalist in just under four hours.

On Sunday, she felt the nerves—then beat them back just in time to make her first quarterfinal in Paris in 17 years.

A spicy scene over a line call was a subplot to Tiafoe's four-hour win over Portugal's Jaime Faria on Saturday night.

The Ukrainian remained undefeated on clay this season to reach her second major quarterfinal.

The world No. 4 became the latest major champion to fall before the second week of the clay-court major.

“I was just telling myself I deserve to be here.”