SAO PAULO (AP) Fourth-seeded Joao Sousa of Portugal defeated Renzo Olivo of Argentina 6-2, 6-4 on Wednesday to reach the quarterfinals of the clay-court Brazil Open.
In another match, No. 7 Federico Delbonis of Argentina defeated 18-year-old Casper Ruud of Norway 7-5, 6-3 to make the last eight.
Ruud reached the semifinals last week in Rio de Janeiro before losing to Pablo Carreno Busta of Spain.
Carreno Busta is seeded No. 1 in the Brazil Open and plays his first match on Thursday after getting a bye into the second round.