(Paris) Bernarda Pera failed to win a service game on Monday en route to a 6-3, 6-1 final loss to Ons Jabeur in the fourth round of the French Open tennis tournament.

The American was the victim of eight breaks of service against the Tunisian, seventh seed of the tournament, on the clay court of Philippe-Chatrier. Jabeur took 15 of 16 points on second serve from Pera, an unseeded player. Jabeur, who was runner-up at Wimbledon last year, reached the quarter-finals at Roland-Garros for the first time in his career.

She certainly had some problems with her serve against Pera, but she still managed to save eight of the 12 break points offered to her rival.

Pera appeared frustrated at times, and she occasionally tried to rush the end of the trade — a strategy that was doomed to fail. She committed a total of 33 unforced errors.

In women’s doubles, Quebec’s Leylah Annie Fernandez and her American playing partner Taylor Townsend beat Ontario’s Gabriela Dabrowski and her Brazilian teammate Luisa Stefani 6-4, 4-6 and 6-2 in the third round.

Later today, women’s tournament favorite Iga Swiatek will face Ukrainian Lesia Tsurenko on the Suzanne-Lenglen court, while American Coco Gauff will face Anna Karolina Schmiedlova . Last year, Swiatek defeated Gauff in the final of the second major tournament of the season. They could meet again, this time in the quarter-finals, provided they each win their fourth-round match.

On the men’s side, the fourth seed Casper Ruud will face Nicolas Jarry, while Holger Rune (no 6) will face Francisco Cerundolo (no 23). For his part, the Japanese Yoshihito Nishioka (no 27) will face Tomas Martin Etcheverry, while the German Alexander Zverev (no 22) will have an appointment with Grigor Dimitrov (no 28) in the evening.