Gonzalez and Bellucci upset in Chile

Federico Delbonis upset Thomaz Bellucci 6-2, 7-5 at the VTR Open to reach the quarter-finals.

Delbonis broke Bellucci four times from five opportunities and dropped serve just once to claim the win in one hour and 31 minutes.

He will next plays Carlos Berlocq, who beat Diego Junqueira, 6-1, 6-0 in 62 minutes.

Joao Souza defeated Fernando Gonzalez 6-3, 7-6(6).

Souza converted five of his eight break point chances to clinch victory in one hour and 47 minutes.

The 23-year-old Souza will face either Juan Ignacio Chela or Horacio Zeballos.