Rio de Janeiro - Pablo Cuevas of Uruguay advanced to the Rio Open semi-finals on Friday, beating Spain's Albert Ramos Vinolas 6-3, 3-6, 6-3.
Cuevas, the 2016 winner in the clay-court event, will face 18-year-old Felix Auger Aliassime of Canada.
Aliassime beat Spain's Jaume Munar 6-4, 6-3.
In the other quarter-finals, Serbia's Laslo Dere beat Norway's Casper Ruud 6-4, 7-5, and Slovenia's Aljaz Bedene topped Bolivia's Hugo Dellien 4-6, 6-2, 6-3.
Results on Friday in the ATP Tour's Rio Open (x-denotes seeded player):
Quarter-finals
Laslo Djere (SRB) bt Casper Ruud (NOR) 6-4, 7-5
Aljaz Bedene (SLO) bt Hugo Dellien (BOL) 4-6, 6-2, 6-3
Pablo Cuevas (URU) bt Albert Ramos (ESP) 6-3, 3-6, 6-3
Félix Auger-Aliassime (CAN) bt Jaume Munar (ESP) 6-4, 6-3