Ilya Ivashka will face Stan Wawrinka in the second round of the Open 13 Marseille after beating Laslo Djere in straight sets on Tuesday.
Wawrinka has struggled since returning from a knee injury at the start of the season and qualifier Ivashka will attempt to strike another blow to the three-time grand slam champion on the Mediterranean coast.
The world number 193 from Belarus beat Djere 6-3 6-1, breaking four times and saving all four break points he faced.
Two-time champion Gilles Simon needed two tie-breaks to overcome Maximilian Marterer 7-6 (7-3) 7-6 (7-4) in his homeland.
Karen Khachanov, the ninth seed, will play Tomas Berdych after seeing off qualifier Ruben Bemelmans 6-3 7-6 (7-2) on day two.
Filip Krajinovic, Stefano Travaglia and Pierre-Hugues Herbert also moved into round two.
