"I'm happy with my playing here but I'm not surprised at all, though I had no official match practice since April," Nalbandian said. "I know my level and I did my best to prepare for these matches."
Serbia, Argentina make Davis Cup semifinals →
"It's a great and enjoyable tournament to play," said Nalbandian, who lost to Tommy Robredo in the quarterfinals of the Copa Claro in Buenos Aires on Saturday.
ATP warns of Acapulco security concerns →