RIO DE JANEIRO -- Fifth-seeded Joao Sousa was eliminated from the Rio Open on Thursday, adding to the list of favorites knocked out of the clay-court tournament in the early stages.
Norwegian Casper Ruud topped Portugal's Sousa 6-3, 3-6, 6-4 in the round of 16.
In the quarterfinals, Ruud will face Serbia's Laslo Dere, who eliminated Japan's Taro Daniel 6-4, 6-2.
2016 Rio Open champion Pablo Cuevas of Uruguay advanced after beating Argentina's Juan Ignacio Londero 6-1, 6-4.
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