Paolo Lorenzi upsets Juan Monaco in Brazil Open quarterfinals

Defending champion Rafael Nadal is not playing at the clay-court tournament this year. He chose to play at the first edition of the Rio Open, which he won

The 114th-ranked Paolo Lorenzi broke Monaco's serve to go up 4-3 in the decisive set :: Rahel Patrasso/Landov

Defending champion Rafael Nadal is not playing at the clay-court tournament this year. He chose to play at the first edition of the Rio Open, which he won last week.