Pablo Cuevas is on an impressive roll…

The 28-year-old Uruguayan tenista, who won his first-ever ATP title at the Swedish Open earlier this month, upset sixth-seeded Andreas Seppi on Thursday to become the first qualifier to reach the Croatia Open quarterfinals in seven years.

Cuevas, riding the confidence of his maiden ATP title in Sweden, didn’t drop serve, played patiently from the baseline, and pushed Seppi into unforced errors.

Seppi failed to convert three break points while trailing 5-3 in the first set, and never recovered. He won the first game of the second set, then lost the next six, winning only four points on Cuevas’ serve.

Cuevas will play Teymuraz Gabashvilion Friday, after the Russian came from a set and a break down to beat João Sousa of Portugal, a rising star on the tour.