Daniil Medvedev moved a step closer to the business end of the French Open with a straight-sets win over tricky Laslo Djere.
The world no.2 rolled to a 6-3 6-4 6-3 win against Serbian.
The Russian is not the most acclaimed claycourt star and once again struggled at times but his elasticity eventually made up for his lack of natural ability to move around on the slow surface.
He will next meet 28th seed Miomir Kecmanovic of Serbia.
Medvedev arrived at the French Open with only one match on clay under his belt after undergoing a procedure to treat a hernia in April.
A string of early unforced errors gave Djere a break in the first game, but Medvedev moved up a gear to win five games in a row and take control of the contest as his opponent appeared to struggle physically.
The Russian broke decisively for 5-4 in the second set and there was no coming back for world number 56 Djere, who bowed out on the first match point when he netted a routine backhand.
On the women’s side of the draw, the trend of upsets continued.
Local wildcard Leolia Jeanjean thrashed ex-world number one Karolina Pliskova 6-2 6-2 in the second round.
The 26-year-old Jeanjean, playing in her maiden Grand Slam, is a former big hope of French tennis who ended up living on minimum wage after a knee injury suffered when she was 15 kept her off the courts for two years.
She will break into the top 150 after starting the tournament as world number 227.