Also Wednesday, Nuno Borges of Portugal rallied to defeat home-crowd favorite Pablo Carreno Busta 6-7 (7), 7-6 (3), 6-3.
Arthur Rinderknech defeated Roman Safiullin 7-6 (4), 6-1, while Christopher O’Connell got past Camilo Ugo Carabelli 6-3, 6-4.
In the women’s first round at the clay-court tournament, Americans Katie Volynets, Alycia Parks and Bernarda Pera all advanced in straight sets.
Volynets defeated three-time Madrid Open champion Petra Kvitova 6-4, 6-0, while qualifier Pera got past Jana Fett 6-4, 6-3. Parks overcame Victoria Jimenez Kasintseva 6-3, 6-3.
Maria Sakkari defeated Xinyu Wang 6-4, 7-6 (7).
