Carlos Alcaraz made heavy weather of his French Open clash with Damir Dzumhur but moved into the fourth round on a hot Friday.
Alcaraz was expected to sizzle in the cool of the evening but the second seed found himself in hot water after his level dipped against Dzumhur before recovering to seal a 6-1 6-3 4-6 6-4 win and book a clash with Ben Shelton.
"Today I didn't enjoy that much," said Alcaraz. "I suffered quite a lot but I'm happy to have played a good match with him. We played great tennis, great rallies and great points."
Eighth seed Lorenzo Musetti blew hot and cold against Mariano Navone before winning 4-6 6-4 6-3 6-2 while Holger Rune emerged from a see-sawing encounter against Quentin Halys with a 4-6 6-2 5-7 7-5 6-2 win.
"It was a brutal match," Rune said. "I tried to change things ... I had to put more spin on the ball because of the conditions.
"The player who took the opportunities to be aggressive was the player who won."
Tommy Paul also needed five sets, the 12th seed defeating Karen Khachanov 6-3 3-6 7-6(7) 3-6 6-3, while American fans had more joy as 13th seed Ben Shelton downed Matteo Gigante 6-3 6-3 6-4 and Frances Tiafoe beat Sebastian Korda 7-6(6) 6-3 6-4.
Alexei Popyrin overcame Nuno Borges 6-4 7-6(11) 7-6(5) to fly the flag for Australia while Daniel Altmaier sent Hamad Medjedovic packing 4-6 6-3 6-3 6-2.
French hopes suffered a blow as Arthur Fils pulled out of Saturday's clash against Andrey Rublev with a back injury.
