Canadian teen Felix Auger-Aliassime beat Uruguay's Pablo Cuevas 5-7, 6-3, 6-3. The 18-year-old Auger-Aliassime will face Spain's Albert Ramos Vinolas. Defending champion Laslo Djere advanced with a 7-6 (5), 4-6, 6-4 win over Italy's Alessandro Gianessi. Djere will face second-seed Malek Jaziri of Tunisia.
Fourth-seeded Leonardo Mayer of Argentina and Christian Garin of Chile set up another quarterfinal. Mayer topped Italy's Lorenzo Sonego 6-1, 3-6, 6-3, and Garin eliminated sixth-seeded Jaume Munar of Spain 7-6 (5), 6-7 (4), 7-6 (2).
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