American third seed Jessica Pegula battled into the Round-of-16 of the French Open on Saturday with a 3-6, 6-4, 6-2 win over Czech Marketa Vondrousova.

The 31-year-old Pegula survived a first set scare and admitted she should have played on the front-foot right from the start. 

“I thought I was playing her the right way in the first set, I just needed to be a tad more aggressive. And then there were times in the third where maybe I was a little too aggressive, coming in on awkward shots. Playing her, that’s why’s it’s so hard — it’s like a really fine line, especially on clay,” said Pegula.