The world number two, who will not play Wimbledon next month due to a ban on Russian players, beat Bagnes 6-2, 6-2, 6-2 to set up a second-round match against Laszlo Derry.
It was only Medvedev’s second match in nearly two months, after hernia surgery kept him out after the Miami Open in March. He lost the rematch to Richard Gasquet in Geneva a week ago but looked back here, against an opponent in Banes who appeared to be struggling with injury.
The Canadian has reached at least the quarter-finals in every other Grand Slam tournament, but never made it past the second round in Paris, and that round was extended as 19-year-old Holger Ron won a 6- 3 6.1 7- 6 win.
“I didn’t really come today, so it’s a bit difficult,” Shapovalov said. “Of course Holger plays good tennis, he won his first title and he pushes great players.
“So it didn’t take anything away from him, he obviously plays great tennis. But I think against most players today I wouldn’t win.
On the women’s side of the lottery, Karolana Pliskova had to come from a late group to eventually defeat France’s Tessa Andriangavetrimo, while Madison Keys fought her way past Anna Kalinskaya.
Jelena OstapenkoThe 2017 French Open champion arrived in Paris on a five-game losing streak but managed to snap that with a 6-1 6-4 win over Lucia Bronzetti to set up a second-round match against local favorite Alize Cornet .