Friday
At Jockey Club Brasileiro
Rio de Janeiro
Purse: $2,469,450
Surface: Red clay
RIO DE JANEIRO (AP) _ Results Friday from Rio Open presented by Claro at Jockey Club Brasileiro (seedings in parentheses):
Men’s Singles
Quarterfinals
Vit Kopriva, Czechia, def. Juan Manuel Cerundolo, Argentina, 6-4, 6-4.
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