Cuevas upsets Nadal in marathon three-setter in Rio semifinals
Thiem won a tournament in Buenos Aires a week ago, beating Nadal in the semifinals, and had won eight straight matches before the loss.
Pella and Thiem played in heavy wind during the first set.
”The first set was terrible to play, but I was raised in a place where the wind was as bad or worse,” said Pella, who grew up in the port city of Bahia Blanca in Buenos Aires province.
In the women’s semifinals, Shelby Rogers of the United States defeated Sorana Cirstea of Romania, 6-4, 6-4, and Francesca Schiavone of Italy won over Petra Martic of Croatia, 6-3, 6-3.