US Open champion Dominic Thiem booked his spot in the French Open fourth round with a hard-fought 6-4 6-3 6-1 victory over Norwegian Casper Ruud.
The Austrian, 27, faced eight break points in the opening two sets, but was only broken once by the 28th seed, in the fourth game of the first set.
Thiem converted six of his chances as he gradually took control en route to victory in two hours and 15 minutes.
The third seed will play 2015 champion Stanislas Wawrinka or Hugo Gaston.
"Casper is a great player - an attractive player," said Thiem.