The Bragado tennis player, who was coming from qualifying, overcame Italian Andrea Vavassori, 148th in the world, in four sets. The 24-year-old Argentine, who until this week had not played any match on the major circuit of world tennis, reached the third round of the second Grand Slam of the season.
The Danish Holger Rune, sixth seed, who also comes from advancing without playing after the Frenchman Gael Monfils decided to retire after the dramatic triumph over the Argentine Sebastián Báez.