World no.108 and local favourite Thomaz Bellucci advances to the last 8 in Sao Paulo.
The Brazilian had a 2 hours and 36 minutes battle against Haider-Maurer. Bellucci won the decisive break in the second game of the last set to win 7-6 (4) 5-7 6-3.
Thomaz will play his next match against world no.97 Martin Klizan. Head to head is 2-0 for Martin.
Pico Monaco reached the quarters after defeating world no. 86 Albert Ramos 7-6 (4) 6-2 7-5 in almost 3 hours. Monaco will face for the first time Paolo Lorenzi in the quarters.
Here the entire line up
Haas – Zeballos
Monaco – Lorenzi
Bellucci – Klizan
Montanes – Delbonis
