Casper Ruud continued his bid to reach back-to-back finals at the French Open by fending off Chile's Nicolas Jarry in a 7-6(3) 7-5 7-5 fourth-round win on Monday as Tunisian trailblazer Ons Jabeur also stayed on course for a maiden Grand Slam crown.
Alexander Zverev hardly broke sweat in the night session to seal a 6-1 6-4 6-3 win over Bulgarian 28th seed Grigor Dimitrov and set up a showdown with Argentine Tomas Martin Etcheverry.
Ruud, who has only dropped two sets in four matches so far, faced a tricky test against lanky claycourt specialist Jarry but pulled through in three hours and 20 minutes as his opponent failed to make his chances count in the last two sets.
"If we had gone five sets I don't know how long we would have played," said Ruud on Court Philippe Chatrier. "I have to thank my team for pushing me in practice. I did the work and physically I was ready for more."
He next meets Holger Rune in a rematch of last year's quarter-final after the Dane got a helping hand from the umpire with a missed but glaring double bounce to battle past Argentine Francisco Cerundolo 7-6(3) 3-6 6-4 1-6 7-6(7).
Etcheverry reached his first Grand Slam quarter-final with a 7-6(8) 6-0 6-1 victory over Yoshihito Nishioka, the 27th seed.
Jabeur moved into the quarter-finals at the claycourt major for the first time with a 6-3 6-1 victory over American Bernarda Pera and hoped that the romantic atmosphere of Paris will help her quest for a maiden Grand Slam title.
"Paris is always romantic, day or night. Winning here will definitely be an amazing memory for me," said Jabeur, who became the first African player to reach the quarters at each of the four majors in the Open Era.
The Tunisian had reached the Australian Open quarter-final in 2020 and finished runner-up to Elena Rybakina and Iga Swiatek in the Wimbledon and U.S. Open title clashes last year.
The 28-year-old is not getting complacent ahead of her clash with 14th seed Beatriz Haddad Maia, who beat Sara Sorribes Tormo 6-7(3) 6-3 7-5 to become the first Brazilian woman since Maria Bueno in 1968 to make the quarter-finals of a major.
"For now, I just want to take it one match at a time," added Jabeur. "I will have a very difficult quarter-final. I was just taking it one match at a time, trying to make it to the second week. Now I'm going to push more for the next few matches."
Haddad Maia became only the second Brazilian woman to reach a Grand Slam quarter-final in the Open Era after Bueno and she got there in three hours and 51 minutes -- the longest women's match of the tournament.